Abrégé

Provided in the present invention are an adaptive active surface wave exploration method and device, and a storage medium. The method comprises: exciting a seismic source, and acquiring measurement data of the seismic source that is collected by geophones; acquiring a surface wave dispersion spectrum, wherein the surface wave dispersion spectrum is acquired by using one geophone as a central channel and the remaining geophones within a set range adjacent to the central channel as adjacent channels, and on the basis of measurement data of the central channel and measurement data of the adjacent channels, performing calculation to acquire the surface wave dispersion spectrum; and on the basis of the surface wave dispersion spectrum, acquiring an underground shear wave velocity structure of each geophone channel by channel, so as to acquire an underground shear wave velocity profile within the entire measurement range to complete exploration. In addition, further disclosed in the present invention are an adaptive active surface wave exploration device and a storage medium. In the present invention, distributed cable-free geophones are used, and an underground shear wave velocity structure of each geophone is acquired by means of channel-by-channel inversion, such that the resolution of an underground shear wave velocity profile within a final measurement range is greatly improved, thereby greatly meeting the requirement for detailed investigations in complex environments.

Classes IPC  ?

• G01V 1/20 - Aménagements d'éléments récepteurs, p. ex. oscillogrammes géophoniques

Abrégé

A multi-excitation-point active surface wave exploration method, comprising: exciting a plurality of seismic sources one by one, geophones collecting and screening a plurality of groups of common-seismic-source measurement data, selecting the common-seismic-source measurement data of the geophones within a set offset range, using one screened geophone as a central channel and geophones within a set adjacent range as adjacent channels, and using the common-seismic-source measurement data of the central channel and the adjacent channels to obtain surface wave dispersion spectra as central-channel surface wave dispersion spectra; in this way, sequentially obtaining surface wave dispersion spectra of a plurality of geophones at different seismic sources, and superposing the surface wave dispersion spectra; and on the basis of the surface wave dispersion spectra, sequentially acquiring an underground shear wave velocity structure of each geophone, so as to acquire an underground shear wave velocity profile within a measurement range to complete the exploration. Further provided are a multi-excitation-point active surface wave exploration device and a storage medium.

Classes IPC  ?

• G01V 1/28 - Traitement des données sismiques, p. ex. pour l’interprétation ou pour la détection d’événements
• G01V 1/30 - Analyse

Abrégé

Embodiments of the present application disclose a three-dimensional model generating method and apparatus, and an electronic device. The three-dimensional model generating method includes: performing feature extraction on an aerial three-dimensional model and a ground three-dimensional model of a to-be-modeled object respectively to obtain at least three sets of feature vectors; performing registration on the aerial three-dimensional model and the ground three-dimensional model based on the feature vectors, and determining a first transition area of a fused three-dimensional model; reconstructing a triangular patch of the first transition area to obtain a second transition area; and performing texture filling on the second transition area, and determining a target three-dimensional model of the to-be-modeled object.

Classes IPC  ?

• G06T 17/00 - Modélisation tridimensionnelle [3D] pour infographie
• G06T 7/33 - Détermination des paramètres de transformation pour l'alignement des images, c.-à-d. recalage des images utilisant des procédés basés sur les caractéristiques
• G06T 15/04 - Mappage de texture
• G06T 15/10 - Effets géométriques

Abrégé

A three-dimensional model generation method and apparatus, and an electronic device. The three-dimensional model generation method comprises: respectively performing feature extraction on an aerial three-dimensional model and a ground three-dimensional model of an object to be modeled, so as to acquire at least three groups of feature vectors (S110); performing registration on the aerial three-dimensional model and the ground three-dimensional model on the basis of the feature vectors, so as to determine a first transition region of a fused three-dimensional model (S120); reconstructing triangular patches of the first transition region, so as to obtain a second transition region (S130); and performing texture filling on the second transition region, and determining a target three-dimensional model of said object (S140).

Classes IPC  ?

• G06T 17/05 - Modèles géographiques
• G06T 17/20 - Description filaire, p. ex. polygonalisation ou tessellation
• G06T 15/04 - Mappage de texture

Abrégé

Disclosed is steel rail grinding equipment based on high-pressure water jet technology, comprising a flatbed vehicle (1), a water jet grinding unit (2) provided inside the flatbed vehicle (1), a rail measurement unit (5), a grinding control terminal (6), and a hydraulic driving device (9). The hydraulic driving device (9) comprises a speed sensor (911) and a position sensor (912); the water jet grinding unit (2) comprises a lifting/lowering mechanism (21) connected to the flatbed vehicle (1), grinding water jet cutters (22) connected to the lifting/lowering mechanism (21), and a water flow pressure regulating device (23) and an abrasive feeding device (24) separately communicated with the grinding water jet cutters (22). According to the present invention, a central controller controls the flatbed vehicle to move to a grinding operation coordinate point in real time, and according to different positions, different angles, different corrugations, and different profiles of steel rails, the water jet grinding unit performs automatic position and attitude regulation along the arc of a mounting base for grinding.

Classes IPC  ?

• E01B 31/17 - Enlèvement du métal des rails, joints de rails, ou plaques d'appui, p. ex. pour l'ébarbage des soudures, la remise en état des rails usés par meulage

Abrégé

A water jet steel rail fat edge refining system based on gauge measurement, and refining method. The system comprises a travel module (1) arranged on two parallel rails (8), a water tank module (2) arranged on the travel module (1), an abrasive feeding module (3), a pressurizing module (4), a gauge measurement unit (5), a fat edge alignment module (6), a water jet refining module (7) connected to the abrasive feeding module (3), and a control positioning module. The gauge measurement unit (5) is connected to the control positioning module. The refining method comprises the following steps: the travel module (1) realizes real-time movement of the steel rail of which fat edge is refined by the water jet; the gauge measurement unit (5) measures the geometric size of the rail, locates the fat edge of the steel rail, and transmits data thereof to the control positioning module; and the control positioning module controls the fat edge alignment module (6) to be aligned with the position of the steel rail fat edge, and detects the cutting amount of the fat edge and controls the cutting depth of the refining water jet of the water jet refining module (7) according to the steel rail fat edge data, so as to refine the fat edges of switch rails, stock rails and curved rails at turnout switches. The water jet steel rail fat edge refining system based on gauge measurement does not sharply increase the temperature of the steel rails, produces little dust and noise during operation, and achieves high cutting efficiency and accurate control.

Classes IPC  ?

• E01B 31/17 - Enlèvement du métal des rails, joints de rails, ou plaques d'appui, p. ex. pour l'ébarbage des soudures, la remise en état des rails usés par meulage

Abrégé

An abrasive water jet grinding system and method based on multi-axis drive control. The system comprises a grinding vehicle (1), a vehicle control system mounted on the grinding vehicle (1), a steel rail surface damage and front and rear profile detection system (2), a grinding servo drive system (3), an ultra-high pressure water treatment system (4), a water jet grinding system (5), a multi-channel grinding pressure and flow control system (6), and a waste water recovery and separation system (7). The water jet grinding system (5) comprises a grinding lifting mechanism (51), grinding performance mechanisms (52), and an abrasive supply mechanism (53), wherein the grinding performance mechanisms (52) on the same side are respectively used for realizing the rough-fine grinding of a steel rail, a three-axis full-servo drive mechanism is arranged on each grinding performance unit (57) of each grinding performance mechanism (52), and a plurality of grinding performance units (57) are controlled to be subjected to high-precision posture and position linkage by the grinding servo drive system (3), so as to fit with a profile of the steel rail, realizing profiling high-precision grinding of the steel rail; in addition, the high-precision multi-channel grinding pressure and flow control system (6) is designed in a channel of the grinding performance units (57), so as to control water pressure and flow of a water jet accurately.

Classes IPC  ?

• E01B 31/17 - Enlèvement du métal des rails, joints de rails, ou plaques d'appui, p. ex. pour l'ébarbage des soudures, la remise en état des rails usés par meulage
• G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques

Abrégé

A water jet rail grinding car dirt blowing and suction method and system based on image processing, the method comprising: foreign matter detection cameras (63) collecting original surface feature images of a rail and a ballast bed, and then transmitting same to a foreign matter visual processing system; the foreign matter visual processing system performing calibration point extraction and matching on a template image by means of a camera calibration module to obtain calibration parameters; importing the calibration parameters into an image processing module and performing image preprocessing, and performing coordinate transformation restoration on the preprocessed image by means of a calibration parameter matrix; a foreign matter recognition and location module performing detection of foreign matters on the rail on the basis of template matching and genetic algorithm, and acquiring rail foreign matter detection data; a data processing module carrying out storage, search and analysis on the rail foreign matter detection data and generating a dirt blowing and suction solution; and, according to a visual detection algorithm, recognizing and locating foreign matter attachment information of each area, and intelligently controlling the dirt blowing and suction strength of each area, thus achieving self-adaptive cleaning for grinding scraps and dirt on the whole rail.

Classes IPC  ?

• E01H 8/10 - Enlèvement des matières indésirables des rails, rails à ornière ou similaires, p. ex. enlèvement de la glace des rails conducteurs, enlèvement de la boue des rails à ornière
• E01B 31/17 - Enlèvement du métal des rails, joints de rails, ou plaques d'appui, p. ex. pour l'ébarbage des soudures, la remise en état des rails usés par meulage
• G06T 7/00 - Analyse d'image
• G06T 7/73 - Détermination de la position ou de l'orientation des objets ou des caméras utilisant des procédés basés sur les caractéristiques
• G06T 7/80 - Analyse des images capturées pour déterminer les paramètres de caméra intrinsèques ou extrinsèques, c.-à-d. étalonnage de caméra
• G06N 3/12 - Agencements informatiques fondés sur des modèles biologiques utilisant des modèles génétiques
• G06V 10/75 - Organisation de procédés de l’appariement, p. ex. comparaisons simultanées ou séquentielles des caractéristiques d’images ou de vidéosApproches-approximative-fine, p. ex. approches multi-échellesAppariement de motifs d’image ou de vidéoMesures de proximité dans les espaces de caractéristiques utilisant l’analyse de contexteSélection des dictionnaires

Abrégé

A water quality inspection circulating system and method for high-pressure abrasive water jet steel rail grinding. The system comprises a mixing and jetting module, an abrasive separation module (23, 20, 15, 14), an abrasive conveying module (17), a water viscosity adjusting module (24, 8, 21) and a control module, wherein the mixing and jetting module is used for grinding a steel rail after mixing an abrasive with a liquid; the abrasive separation module (15) is arranged corresponding to the mixing and jetting module, and is used for collecting a waste liquid after grinding, performing solid-liquid separation on the waste liquid, conveying the separated abrasive to the abrasive conveying module (17), and inputting the separated liquid to the water viscosity adjusting module; the abrasive conveying module is used for conveying an abrasive with specified parameters to the mixing and jetting module; and the water viscosity adjusting module is used for adjusting the concentration of an additive in the liquid which is output by the abrasive separation module. Water and an abrasive are recycled, and the concentration of an additive in the water is kept unchanged, such that a steel rail grinding vehicle can complete a steel rail grinding task more durably, more efficiently and safely.

Classes IPC  ?

• B24C 1/08 - Méthodes d'utilisation de jet abrasif en vue d'effectuer un travail déterminéUtilisation d'équipements auxiliaires liés à ces méthodes pour polir des surfaces, p. ex. en utilisant des abrasifs entraînés par un liquide
• B24C 9/00 - Accessoires des machines ou dispositifs de traitement au jet abrasif, p. ex. enceintes de travail, dispositions pour la manutention des abrasifs usés
• B24C 7/00 - Équipement d'alimentation en matériau abrasifCommande de l'écoulement de la composition ou des autres caractéristiques physiques du jet abrasif

Abrégé

A high-pressure water jet steel rail grinding scrap iron separation system and method. The system comprises a scrap iron preliminary screening device (1), a scrap iron fine separation device (3) and an abrasive separation device (4). The scrap iron preliminary screening device (1) comprises an electromagnetic drum module and is used for adsorbing scrap iron in an abrasive waste liquid. The scrap iron fine separation device (3) comprises an electromagnetic scrap iron fine separation module, a first rotating connecting rod module and a scrap iron collecting drum (8) and is used for completing fine separation and recovery of scrap iron. The abrasive separation device (4) comprises an abrasive filter screen module, a second rotating connecting rod module and an abrasive collecting drum (20) and is used for separating an abrasive material from the waste liquid and recovering the abrasive material. According to the separation method, the abrasive waste liquid is introduced once every time, that is, preliminary screening and fine separation are carried out once, so that a collection rate of scrap iron is increased. The scrap iron is adsorbed by the electromagnetic principle, and the steel rail grinding waste liquid is effectively removed by means of preliminary screening of the electromagnetic drum and fine separation of the electromagnetic filter screen.

Classes IPC  ?

• B03C 1/30 - Combinaisons avec d'autres dispositifs, non prévues ailleurs
• B03C 1/02 - Séparation magnétique agissant directement sur la substance à séparer
• B03C 1/12 - Séparation magnétique agissant directement sur la substance à séparer ayant des supports pour le matériau traité, de forme cylindrique avec des aimants se déplaçant pendant l'opérationSéparation magnétique agissant directement sur la substance à séparer ayant des supports pour le matériau traité, de forme cylindrique avec des pièces de pôle mobiles

Abrégé

A separation and recycling system for an abrasive subjected to rail grinding using a high-pressure abrasive water jet, comprising an abrasive primary separation module, an abrasive drying module, an abrasive secondary separation module and an abrasive collection and storage module. The abrasive primary separation module comprises a recovery water tank (4), a filter screen (5) and a vibration motor (3); the abrasive drying module conveys, to the abrasive secondary separation module, an abrasive subjected to primary drying; the abrasive secondary separation module comprises an abrasive separator (18), a fan (17) and a recovered abrasive pipeline (19); an air inlet of the fan (17) is communicated with the abrasive separator (18), and the fan (17) is used for providing corresponding level of wind power according to the gravity and the windward area of an abrasive to be recovered, so that an abrasive satisfying both the gravity and the surface roughness enters the recovered abrasive pipeline (19) under the action of the wind power; the abrasive collection and storage module is used for storing abrasives collected by the recovered abrasive pipeline (19). The system can improve the abrasive separation accuracy and the abrasive recovery quality, so that abrasives can be more fully recovered and recycled.

Classes IPC  ?

• B24C 9/00 - Accessoires des machines ou dispositifs de traitement au jet abrasif, p. ex. enceintes de travail, dispositions pour la manutention des abrasifs usés

Abrégé

A calibration method and system for an incident angle of a portable high-pressure water jet for steel rail grinding. In the calibration method, firstly, original data of an acceleration and an angular velocity is collected by using an accelerometer and a gyroscope; three-axis acceleration data and three-axis angular velocity data are solved by combining the sensitivities of two sensors, i.e. the accelerometer and the gyroscope; then, an inertial force vector of the accelerometer is calculated by means of a definition, and a first group of included angle data between the vector and each axis is obtained; the three-axis angular velocity data which is obtained by the gyroscope and is less affected by an external vibration is taken as a second group of included angle data; and a first-order complementary algorithm is applied to the two groups of data, so as to obtain an accurate value, thereby determining a final incident angle. By means of the calibration method, the disadvantages of an accelerometer and a gyroscope are complementary, and the problem of mechanical vibration and noise bringing about an error during the calibration of an incident angle of a water jet for steel rail grinding is solved. The calibration system for an incident angle of a portable high-pressure water jet for steel rail grinding comprises a sensor unit (11) for collecting original data of an acceleration and an angular velocity, a control unit (12) for performing calculation to obtain a first group of incident angles, a second group of incident angles and a final incident angle, and a display screen (2), wherein the control unit (12) is in signal communication with the sensor unit (11) and the display screen (2), respectively.

Classes IPC  ?

• E01B 31/12 - Enlèvement du métal des rails, joints de rails, ou plaques d'appui, p. ex. pour l'ébarbage des soudures, la remise en état des rails usés

Abrégé

A steel rail repair post-treatment strategy making method, comprising: acquiring laboratory repair data and online repair data in an actual working condition, correcting an ideal reference value by using the online repair data in the actual working condition, and mutually complementing by the laboratory repair data and the online repair data to finally obtain steel rail repair result data; respectively collecting and summarizing repair data of different road sections, then calculating parameters after steel rail repair under different road conditions and different road sections, and performing quality grading on steel rail repair results according to impact weights of these parameters on steel rail service reliability and lowest requirements on the parameters; and then comparing grinding data of a repair vehicle with a database, and making different solutions. The steel rails which are evaluated to be unqualified are respectively subjected, according to quality grades, to two treatment modes of secondary grinding by the repair vehicle and manual repairing, and the problems that after the steel rails are repaired, quality evaluation is not accurate, and a post-treatment strategy cannot be made rapidly are solved.

Classes IPC  ?

• G01B 7/28 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer des contours ou des courbes
• G01B 7/34 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la rugosité ou l'irrégularité des surfaces
• G01B 11/24 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des contours ou des courbes
• G01B 11/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la rugosité ou l'irrégularité des surfaces
• E01B 31/17 - Enlèvement du métal des rails, joints de rails, ou plaques d'appui, p. ex. pour l'ébarbage des soudures, la remise en état des rails usés par meulage
• E01B 31/18 - Remise en état ou réparation sur place de parties usagées ou endommagées, p. ex. application de pièces intercalées, reconstruction des rails par soudageChauffage ou refroidissement sur place des parties, p. ex. pour réduire les intervalles des joints, pour durcir les rails

Abrégé

A target distance adjustable nozzle and method suitable for abrasive water jet rail polishing, comprising a nozzle body (1), an outer cover (2), a lower baffle (3), a support frame (5), and an upper baffle (6) that are provided on the same central axis. The nozzle body (1) is connected to the upper baffle (6) by means of a thread; a target distance of the nozzle can be adjusted by screwing the nozzle body (1) to move; the outer cover (2), the lower baffle (3), and the support frame (5) are sleeved on the nozzle body (1) to limit the radial displacement of the nozzle body; a pressure sensor (4) is provided between the nozzle body (1) an the support frame (5); a spring (7) is provided between the support frame (5) and the upper baffle (6); the elastic coefficient of the spring (7) is measured by means of a calibration gauge (8) and a read pressure value; an upper computer generates a "pressure-displacement curve comparison table" according to the elastic coefficient; and after an adjustment distance needed for an optimal target distance of the nozzle is measured, the upper computer provides a pressure threshold, and the nozzle body (1) is screwed, such that the pressure borne by the spring (7) reaches the threshold, and then the adjustment work of the optimal target distance can be completed. The nozzle can be independently adjusted, without affecting the target distance precision of other nozzles, the operation method is simple, and the target distance adjusting precision is high.

Classes IPC  ?

• B24C 1/00 - Méthodes d'utilisation de jet abrasif en vue d'effectuer un travail déterminéUtilisation d'équipements auxiliaires liés à ces méthodes
• B24C 9/00 - Accessoires des machines ou dispositifs de traitement au jet abrasif, p. ex. enceintes de travail, dispositions pour la manutention des abrasifs usés
• B24C 5/04 - Buses de canons

Abrégé

A method and apparatus for controlling stratum deformation in a shield construction process, a non-volatile storage medium, and a processor are disclosed. The method includes: monitoring settlement characteristic parameters in a shield construction process; predicting a settlement proportion according to the settlement characteristic parameters, the settlement proportion being a ratio between a predicted settlement value and a corresponding settlement threshold; and determining construction parameters in the shield construction process according to the settlement proportion. In the method, a settlement proportion is predicted through settlement characteristic parameters monitored in a shield construction process, and then appropriate construction parameters are determined according to the settlement proportion, so that the construction parameters in the shield construction process can be corrected in real time, and the safety and scientificity of stratum deformation control in shield construction can be ensured.

Classes IPC  ?

• E21D 9/06 - Exécution en utilisant un bouclier de percement
• E21D 9/093 - Commande du bouclier de percement

Produits et services

Telegraph posts of metal; posts of metal for power lines; galvanized steel sheets; cable thimbles of metal; anchorage devices of metal; roofing of metal, incorporating photovoltaic cells; railway material of metal; railway points. Computer software applications, downloadable; surveying apparatus and instruments; cables, electric; distribution boxes [electricity]; alarms; charging stations for electric vehicles; downloadable smart phone application [software]; teaching robots. Import-export agency services; sales promotion for others; procurement services for others [purchasing goods and services for other businesses]; marketing; invoicing; advertising; price quotations for goods or services; business management consultancy; systemization of information into computer databases; personnel management consultancy. Construction consultancy; construction; electric appliance installation and repair; machinery installation, maintenance and repair; building construction supervision; providing construction information; installation and maintenance of illuminating apparatus; vehicle breakdown repair services; drilling of wells; upholstering. Technological research; conducting technical project studies; research and development of new products for others; engineering drawing; quality testing; rental of computer software; information technology [IT] consultancy; scientific research; software as a service [SaaS]; electronic data storage.

Produits et services

Materials of metal for railway construction Power distributing boxes; alarm installations and alarms; downloadable computer application software for mobile phones, namely, software for use in database management Procurement, namely, purchasing goods or services in the nature of Materials of metal for railway construction for others Construction of buildings; installation, maintenance and repair of lighting apparatus Scientific research; consulting in the field of information technology; consulting services in the field of software as a service (SaaS)

Abrégé

A method for analyzing a correlation between rail transit and direct current (DC) magnetic bias of a transformer includes the steps of, A: obtaining a current of a feed cable and a DC magnetic bias current: measuring the feed cable current in rail transit and the DC magnetic bias current of a transformer in a power grid within a certain period by a monitoring apparatus; B: calculating a characteristic quantity of the feed current within the measurement period based on the obtained current of the feed cable; C: calculating a characteristic quantity of the DC magnetic bias current within the measurement period based on the DC magnetic bias current; and D: calculating a support degree and a confidence coefficient based on the calculated characteristic quantity of the feed current and the calculated characteristic quantity of the DC magnetic bias current, and generating a correlation rule.

Classes IPC  ?

• G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
• G01R 31/62 - Test de transformateurs
• G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe

Abrégé

A method for analyzing association between rail transit and transformer direct-current magnetic bias, comprising the following steps: A, acquiring the magnitudes of feed cable currents and direct-current magnetic bias currents: measuring, by means of a monitoring device, the magnitudes of rail transit feed cable currents and power grid transformer direct-current magnetic bias currents within a certain period; B, on the basis of the feed cable currents acquired in step A, calculating characteristic quantities of the feed currents within the measurement period; C, according to the direct-current magnetic bias currents acquired in step A, calculating characteristic quantities of the direct-current magnetic bias currents within the measurement period; and D, according to the characteristic quantities of the feed currents and the direct-current magnetic bias currents calculated in step B and step C, calculating support levels and confidence levels, and generating an association rule. The association analysis method provided in the present method can provide a basis for analyzing the effect of rail traffic on power grid transformer direct-current magnetic bias.

Classes IPC  ?

• G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
• G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe

Abrégé

The present invention provides an earthquake-resistant synchronous grouting material. The material comprises water, cement, fly ash, an aggregate, a plasticizer, and a toughener. The toughener is an emulsified asphalt, an acrylate, and/or an epoxy resin. The aggregate is sand and/or vitrified micro-beads. After curing, the material has low strength and low elastic modulus, such that the deformability of the material is clearly improved, and thereby when an earthquake disaster occurs, energy can be effectively absorbed, providing a buffer for pipe segments, thereby achieving the effects of preventing cracks, preventing seepage, and resisting earthquakes. The material also effectively fills gaps in the pipe segments, achieving the desired effects of preventing seepage and resisting settling during tunnel construction.

Classes IPC  ?

• C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates
• C04B 111/70 - Coulis
• C04B 111/34 - Matériaux non rétractables
• C04B 111/27 - Résistance à l'eau, c.-à-d. matériaux imperméables ou hydrophobes

Abrégé

A sealing method for a shield tail (20) sealing system for a shield tunneling machine (50). The method comprises: step S30: applying grease to sealing brushes (10) of the shield tail (20) sealing system; step S40: making shield tail gaps (1) between the inner wall of the shield tail (20) and the outer walls of segments (30) be kept within a first preset range; and step S50, forming a sealing cavity (2) by each portion enclosed by each sealing brush (10), the inner wall of the shield tail (20) and the outer wall of each segment (30), and injecting the grease into each sealing cavity (2) to make the pressure in the sealing cavity (2) reach a preset sealing pressure value.

Classes IPC  ?

• E21D 9/087 - Exécution en utilisant un bouclier de percement avec des moyens complémentaires de foration ou d'incision avec une tête de forage de type rotatif coupant simultanément toute la section transversale, c.-à-d. tunneliers pleine-face
• E21D 9/093 - Commande du bouclier de percement
• E21D 9/06 - Exécution en utilisant un bouclier de percement
• E21D 9/00 - Tunnels ou galeries, avec ou sans revêtementsProcédés ou appareils pour leur exécutionTracé des tunnels ou des galeries
• E21D 11/08 - Revêtement avec des matériaux de construction avec des plaques de béton préfabriquées
• E21D 11/10 - Revêtement avec des matériaux de construction avec du béton coulé en placeCoffrage ou autre équipement adapté à cet effet

Abrégé

A mounting method for a shield tail of a shield tunneling machine. The shield tail (10) comprises a plurality of arc pieces comprising an upper arc plate (11) and a lower arc plate (12) arranged opposite one another, and two side arc plates (13) connected between the upper arc plate (11) and the lower arc plate (12). The mounting method comprises: step S10, pre-mounting a lower arc plate (12) on a base platform (20); step S20, lengthening the length of a traveling beam (40) on a shield center (30) of a shield tunneling machine; step S30, mounting a first supporting rod (51) between the lower arc plate (12) and the traveling beam (40); step S40, pre-mounting side arc plates (13) to connect the side arc plates (13) to the traveling beam (40); and step S50, pre-mounting an upper arc plate (11). By means of the method, the problem in the prior art of the mounting precision of a shield tail of a shield tunneling machine not being high can be effectively solved.

Classes IPC  ?

• E21D 9/087 - Exécution en utilisant un bouclier de percement avec des moyens complémentaires de foration ou d'incision avec une tête de forage de type rotatif coupant simultanément toute la section transversale, c.-à-d. tunneliers pleine-face
• E21D 9/06 - Exécution en utilisant un bouclier de percement

Abrégé

An underground space quality evaluation and visualized representation method and system. Said method comprises the following steps: collecting pictures of an existing underground space by means of a picture collection robot; putting the collected pictures into a data collection platform, and collecting evaluation results of four indicators of spatial brightness, spatial comfort, spatial richness and environmental artistry of each picture by means of a crowd-sourcing mechanism; obtaining, by means of a deep learning algorithm, a model used for inferring picture score data according to picture features; repeating the described steps until the accuracy of the model meets the requirements; acquiring pictures and coordinates of an underground space needing to be evaluated, and using the trained model to score each picture; and labeling locations on an underground space plan according to the scores using different colors to form a score result plane distribution map and displaying same.

Classes IPC  ?

• G06T 7/00 - Analyse d'image

Abrégé

Disclosed are a stratum deformation control method and apparatus for a shield construction process, a non-volatile storage medium, and a processor. The method comprises: monitoring a settlement characteristic parameter in a shield construction process; predicting a settlement ratio according to the settlement characteristic parameter, wherein the settlement ratio is a ratio of a predicted settlement value to a corresponding settlement threshold; and determining a construction parameter in the shield construction process according to the settlement ratio. In the method, the settlement characteristic parameter monitored in the shield construction process is used to predict a settlement ratio, and then an appropriate construction parameter is determined according to the settlement ratio, thereby ensuring that the construction parameter in the shield construction process is corrected in real time, and ensuring the safety and rationality of stratum deformation control in shield construction.

Classes IPC  ?

• E21D 9/06 - Exécution en utilisant un bouclier de percement
• E21D 9/08 - Exécution en utilisant un bouclier de percement avec des moyens complémentaires de foration ou d'incision
• E21D 11/10 - Revêtement avec des matériaux de construction avec du béton coulé en placeCoffrage ou autre équipement adapté à cet effet

Abrégé

Provided is a vibration reduction section prefabricated ballastless track structure having a longitudinal connecting structure, comprising prefabricated crossties or prefabricated track plates (1), a cast-in-place layer (2), a vibration reduction layer (6), an under-track foundation (3), a junction filling portion (402), and a longitudinal connecting structure. The multiple prefabricated crossties or prefabricated track plates (1) are spaced apart from each other in a longitudinal direction. Two transverse ends of each prefabricated crosstie or prefabricated track plate (1) in a spacer region are assembled and connected to each other by means of the longitudinal connecting structure. In part or all of spacer regions, a reinforced concrete structure is used as the junction filling portion (402). The junction filling portion (402) and the prefabricated crossties or prefabricated track plates (1) form an assembled integral structure. The prefabricated crossties or prefabricated track plates (1) form a single force-bearing long-plate unit structure body, and enable assembly and connection, position limiting, and vibration reduction. In addition, the present application improves the precision of site laying and construction, facilitates removal and mounting, reduces construction difficulty, and improves construction speed.

Classes IPC  ?

• E01B 1/00 - BallastAutres moyens pour supporter les traverses ou la voieAssèchement du ballast
• E01B 27/00 - Mise en place, renouvellement, travail, nettoyage ou enlèvement du ballast avec ou sans travail concomitant sur la voieDispositifs ad hocRemblayage des traverses

Abrégé

A longitudinal connection structure of an assemblable sleeper slab-type or track slab-type ballastless track structure, a ballastless track structure comprising the longitudinal connection structure, and an assembly method for the ballastless track structures. Pre-embedded longitudinal steel bars (102) are longitudinally connected by means of an extrusion sleeve (104), mating ends of the two longitudinal steel bars (102) are respectively inserted into two ends of the extrusion sleeve (104), and under the extrusion of a portable extruder, the extrusion sleeve (104) is deformed and tightly locked. The longitudinal connection structure can improve the accuracy during on-site laying construction, facilitate disassembly and installation, reduce construction difficulties, and improve on-site construction speed; in addition, the longitudinal connection structure has a simple structure, and facilitates the positioning of a sleeper slab or a track slab.

Classes IPC  ?

• E01B 1/00 - BallastAutres moyens pour supporter les traverses ou la voieAssèchement du ballast
• E01B 27/00 - Mise en place, renouvellement, travail, nettoyage ou enlèvement du ballast avec ou sans travail concomitant sur la voieDispositifs ad hocRemblayage des traverses

Abrégé

Disclosed is an anti-separation structure for a concrete-filled steel tube member and a sleeper block of a ballastless track. The anti-separation structure is used in a concrete-filled steel tube sleeper of a ballastless track, and the concrete-filled steel tube sleeper comprises two or more sleeper blocks (1), and a plurality of concrete-filled steel tubes (2) connecting the sleeper blocks (1), wherein the concrete-filled steel tubes (2) are formed by pouring concrete into hollow steel tubes; the hollow steel tubes have portions (3) with an expanded radial width at external ends thereof embedded in the sleeper blocks (1) the range of length less than 50 mm; and during the pouring process of the hollow steel tubes, the portions (3) with an expanded radial width are also filled with concrete and are poured with the sleeper blocks (1) during a pouring process of the sleeper blocks (1) such that same are integrated. An end of a formed concrete-filled steel tube undergoes flaring, and under the action of an external load, a concrete-filled steel tube member cannot be pulled away and separated; and the flaring is very beneficial to a spraying operation and the spreading of sprayed grout.

Classes IPC  ?

• E01B 3/38 - LongrinesLongrines seules ou combinées avec des entretoisesTraverses et longrines combinéesAssises en béton supportant les deux rails
• E01B 3/40 - DallesBlochetsSupports à clocheFixation des entretoises aux dalles, blochets ou supports à cloche

Abrégé

Embodiments of the present invention disclose a recess structure for reinforcing a connection between a railway sleeper and a track bed, the recess structure being used in a ballastless track to reinforce the connection between a prefabricated sleeper unit and a subsequently-placed track bed. A reinforcement member is provided at one or more sidewalls in a transverse direction of the railway sleeper, that is, in a longitudinal direction of the track. The reinforcement member is a recess recessed inward from the sidewalls of the railway sleeper, such that during a pouring and placing process of the track bed, the recess and a certain height of the railway sleeper are buried in concrete of the track bed and integrated with the same by means of concrete pouring, the concrete directly filling the recess so as to reinforce the connection between the railway sleeper and the track bed.

Classes IPC  ?

• E01B 3/32 - Traverses ou longrinesAutres supports de rails reposant directement sur le ballast en béton, pierre naturelle ou artificielle avec armatures ou renforcement

Abrégé

A parameter-based 2D-drawing/3D-model smart conversion method and a system for a platform door. The method comprises: storing all platform door design parameters in a database; extracting and caching the platform door design parameters from the database, assigning the values of the design parameters to 2D drawing generation elements or 3D model building elements, calling drawing software, and drawing a 2D drawing of a platform door according to the 2D drawing generation elements or building a 3D model of a platform door; and buffering parameters of the 2D drawing generation elements or parameters of the 3D model building elements, storing the buffered parameters of the 2D drawing generation elements or the buffered parameters of the 3D model building elements in the database, and updating the database. The method enables a 2D drawing generation module and a 3D model building module to share the same design parameter database, and to call the same design parameters, such that a generated 2D drawing and a 3D model have corresponding design parameters and structures, thereby improving drawing efficiency and reducing drawing errors.

Classes IPC  ?

• G06F 17/50 - Conception assistée par ordinateur

Abrégé

An overlapped type platform screen door, relating to the field of platform safety door equipment, and comprising a door sill (2), a side vertical column (61), a middle vertical column (62), a fixed door (1), and an overlapped sliding door; the side vertical column (61), the middle vertical column (62), the fixed door (1), and the overlapped sliding door are all disposed on the door sill (2), and the fixed door (1) is fixed between the side vertical column (61) and the middle vertical column (62); the overlapped sliding door comprises an inner sliding door (4) and an outer sliding door (3); the fixed door (1), the inner sliding door (4), and the outer sliding door (3) are arranged layer by layer; when the overlapped sliding door is folded, the fixed door (1), the inner sliding door (4), and the outer sliding door (3) are sequentially overlapped from inside to outside; when the inner sliding door (4) and the outer sliding door (3) are horizontally and slidably expanded, one side of the outer sliding door (3) is connected to an edge frame, and two sides of the inner sliding door (4) are in contact with the middle vertical column (62) and the other side of the outer sliding door (3). Under the requirement of a same net opening degree, the width of the fixed door next to the sliding door can be reduced by half, the space of the fixed door is saved, and the problem that an existing platform screen door cannot be arranged and the net opening degree of the sliding door cannot be multiplied when the size of the fixed door is limited is resolved.

Classes IPC  ?

• E06B 3/46 - Battants à glissement horizontal
• B61B 1/02 - Aménagement général des gares et des quais y compris les dispositifs de protection des voyageurs

Abrégé

Provided are a ballastless track base plate connecting structure and a ballastless track having the same. The connecting structure comprises a first connecting body and a second connecting body, wherein the first connecting body is provided at an end part of a first ballastless track base plate and comprises a protruding part protruding along the longitudinal direction, and a bolt hole penetrating through the surface of the first connecting body is provided at a longitudinal end face of the protruding part; and the second connecting body is provided at an end part, correspondingly connected to the first ballastless track base plate, of a second ballastless track base plate, and a recessed part extending along the longitudinal direction and matching the protruding part is provided on the second connecting body, and a bolt hole penetrating through the surface of the second connecting body is provided at a longitudinal end face of the recessed part. With the optimized and improved connecting structure being provided on the ballastless track base plate, the problem that a base plate is prone to being deformed when under stress and arches upward during connection can not only be overcome, but the connecting structure is also simple in structure, convenient to construct, and reliable and simple to disassemble, assemble and maintain in the later period.

Classes IPC  ?

• E01B 1/00 - BallastAutres moyens pour supporter les traverses ou la voieAssèchement du ballast

Abrégé

Provided is an assembled steel pipe concrete bi-block railway sleeper, comprising a first concrete railway sleeper block (1), a second concrete railway sleeper block (2) and a plurality of matched steel pipe concrete columns (3), wherein the above are all processed independently. These components stay separate in a transportation link and a warehousing link, and after being conveyed to a construction site together, the steel pipe concrete columns (3) and two concrete railway sleeper blocks are assembled into a whole by means of threads or bonding slurry. Not only can the processes of fixing and assembling be realized rapidly with high precision at the construction site, but it can also be ensured that the railway sleeper is provided with a good form and position maintaining ability, while significantly reducing the use of the connecting members. In particular, the railway sleeper has the outstanding advantages of reducing the processing difficulty of the plurality of links, such as in manufacturing, warehousing, transportation and construction, improving the process efficiency and lowering costs.

Classes IPC  ?

• E01B 3/40 - DallesBlochetsSupports à clocheFixation des entretoises aux dalles, blochets ou supports à cloche

Abrégé

Disclosed is a vibration-damping suspension frame disassembling and assembling device for a maglev train. The device comprises support columns (11), running wheel assemblies (34), a base (31), lifting mechanisms (33), a support table (32), a lifting rail (321), a left locking assembly (351) and a right locking assembly (352). A vibration damping assembly (4) comprises a first threaded cylinder (41), a screw rod (42), a handle (43), a force transmission cylinder (44), a second threaded cylinder (45), a lifting cylinder (46), a transmission rod (47), a connecting cylinder (48), a counterweight block (49) and a sealing cover (410). The present invention can achieve the disassembling and assembling of a maglev-train suspension frame, and the disassembling and assembling are very convenient. In addition, under normal circumstances, the present invention can also serve as a part of the rail in a maglev shed, thereby guaranteeing the normal running of a maglev train in an inspection and maintenance shed. With regard to the characteristic that during the magnetic levitation process of the maglev train, high-frequency adjustment of magnetic levitation clearance is prone to generate resonance with a lower structure, a middle support mechanism is provided, which achieves a good vibration damping effect. At the same time, when the maglev-train suspension frame needs to be disassembled and assembled, the lifting rail can drive the maglev-train suspension frame to lower, which facilitates the disassembling and assembling of the train suspension frame.

Classes IPC  ?

• B23P 19/00 - Machines effectuant simplement l'assemblage ou la séparation de pièces ou d'objets métalliques entre eux ou des pièces métalliques avec des pièces non métalliques, que cela entraîne ou non une certaine déformationOutils ou dispositifs à cet effet dans la mesure où ils ne sont pas prévus dans d'autres classes
• B61B 13/08 - Systèmes à glissement ou à lévitation
• B60L 13/04 - Suspension ou lévitation magnétiques pour véhicules

Abrégé

An ice-breaking and snow-melting cleaning robot for a medium and low speed maglev, comprising a rack (11), folding bending mechanisms, an ice-melting and cleaning mechanism, and an autonomous cruise module (7). The rack (11) spans between two F rails of a low and medium speed maglev to be detected. There are two groups of folding bending mechanisms, which are disposed at two ends of the rack (11) respectively and are located above the F rails. Each group of folding bending mechanisms is provided with a walking wheel pair (5) and a detent wheel pair (2). The snow-melting and cleaning mechanism comprises a fixing frame (15), an F rail obstacle-removal and cleaning unit (14), and an ice-melting heating unit (16). The fixing frame (15) is mounted on the rack (11), located above the folding bending mechanisms, and deployed along the extension direction of the F rails. The F rail obstacle-removal and cleaning unit (14) and the ice-melting heating unit (16) are disposed at two ends of the fixing frame (15) respectively. The autonomous cruise module (7) is mounted below the rack (11). The cleaning robot can melt and clean ice and snow on the F rails, and is simple in structure and convenient to operate.

Classes IPC  ?

• E01H 8/12 - Enlèvement des matières indésirables des rails, rails à ornière ou similaires, p. ex. enlèvement de la glace des rails conducteurs, enlèvement de la boue des rails à ornière spécialement conçus pour les rails à ornière, les voies à patin ou similaires

Abrégé

An auxiliary operation robot for a medium and low speed maglev, comprising a rack (11), folding bending mechanisms, an auxiliary operation mechanism, and an autonomous cruise module (7). The rack (11) spans between two F rails of a medium and low speed maglev to be detected. There are two groups of folding bending mechanisms, which are disposed at two ends of the rack (11) respectively and are located above the F rails. Each group of folding bending mechanisms is provided with a walking wheel pair (5) and a detent wheel pair (2). The auxiliary operation mechanism comprises an auxiliary operation platform (14) and an auxiliary operation device. The auxiliary operation platform (14) is mounted on the rack (11). The auxiliary operation device is mounted on the auxiliary operation platform (14) and is used for completing auxiliary operation. The autonomous cruise module (7) is mounted below the rack (11) and is used for enabling the auxiliary operation robot to walk along the F rails freely. The robot can implement auxiliary operation for on-site maintenance and autonomous cruise, and is simple in structure and convenient to operate.

Classes IPC  ?

• E01B 31/00 - Travail des rails, traverses, plaques d'appui, ou similaires sans être déposés ou déposés sur placeMachines, outils ou dispositifs auxiliaires spécialement conçus à cet effet
• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques
• E01B 35/00 - Applications des appareils ou dispositifs de mesure à la construction des voies
• E01B 35/04 - Appareils roulants
• B25J 5/02 - Manipulateurs montés sur roues ou sur support mobile se déplaçant le long d'un chemin de guidage

Abrégé

A rescue robot for a medium and low speed maglev, comprising a rack (11), a folding bending mechanism, a detecting rescue mechanism, and an autonomous cruise module (7). The rack (11) serves as a support mechanism and is used for securely mounting the folding bending mechanism and the detecting rescue mechanism. The folding bending mechanism is used for mounting a wheel pair to allow a rescue robot to move on F rails (4). The detecting rescue mechanism is used for connecting to F rail detection devices to be rescued, to rescue malfunctioning F rail detection devices in time. The autonomous cruise module (7) is used for allowing the rescue robot to autonomously cruise on the F rails of a medium and low speed maglev. By means of the cooperation of these mechanisms, the robot can rescue the F rail detection devices and walk autonomously. The robot implements timely rescue and is convenient to operate.

Classes IPC  ?

• B25J 5/02 - Manipulateurs montés sur roues ou sur support mobile se déplaçant le long d'un chemin de guidage

Abrégé

Disclosed is a track panel connecting device capable of consecutively collecting suspension clearance signals, wherein a suspension detecting surface lower connecting plate (20a) thereof is of a plate body structure, two ends of the lower connecting plate (20a) of the plate body structure in the direction of a track are respectively provided with through holes (22a), which respectively match and correspond to a connecting hole (12a) of an end part of a track panel and a connecting hole (11a) of another end part of the track panel; fixing members (23a) are used for inserting into the through holes (22a) and elongated round holes (21a) and in turn extending into the corresponding connecting holes to perform positioning after the suspension detecting surface lower connecting plate (20a) is mounted to the suspension detecting surfaces of the end parts of opposite ends of two adjacent track panels, and the fixing members (23a) corresponding to the elongated round holes (21a) are capable of relatively sliding in the elongate round holes (21a) so as to be adapted to the extension between the track panels. Further disclosed is a track panel connecting device capable of consecutively collecting suspension clearance signals, wherein a suspension detecting surface lower connecting plate thereof is a U-shaped plate. A blocking device of the device can effectively ensure the continuity of magnetic suspension signals while being fully adapted to the telescopic deformation between track panels in the longitudinal direction, thereby ensuring the smooth and steady operation of a train.

Classes IPC  ?

• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques

Abrégé

A method for detecting assembling precision of a medium-low speed maglev track panel, the method comprising the following steps: (1) collecting and informationizing design data corresponding to track panel precision detection parameters to obtain a standardized parameter data sheet; (2) carrying out actual measurement or detection on a portion of track panel parameters which are for use in detecting track panel precision by using a detection platform to obtain an actual parameter value; (3) carrying out actual measurement or detection on the other portion of track panel parameters which are for detecting track panel precision by using a measure ruler to obtain an actual parameter value; and (4) using detection data obtained from the step (2) and step (3) to generate a corresponding parameter detection value of the track panel, and comparing with a parameter precision detection standard to obtain a detection result, thus detecting the precision of each machining and laying parameter of the track panel. The method can be used to quickly and accurately detect the various parameters of a medium-low speed maglev track panel, thus reducing the amount of repeated manual detection and processes, saving time and man-power, as well as achieving informatization management and calling on track panel manufacturing information.

Classes IPC  ?

• G01B 5/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques mécaniques
• E01B 35/00 - Applications des appareils ou dispositifs de mesure à la construction des voies

Abrégé

A ribbed column distributed turnout foundation structure for a low-set mid-to-slow speed magnetic levitation line comprising turnout zone foundation treatment reinforced concrete raft slabs (2), turnout beam strip-shaped reinforced concrete ribbed column foundations (1), cast-in-drilled-hole reinforced concrete piles (3), steel plates and embedded bolts (4). The turnout zone foundation treatment reinforced concrete raft slabs (2) are arranged horizontally, and the multiple cast-in-drilled-hole reinforced concrete piles (3) are arranged at the bottom surfaces of the turnout zone foundation treatment reinforced concrete raft slabs (2); the cast-in-drilled-hole reinforced concrete piles (3) penetrate a soft stratum (5) to extend into a bearing stratum (6), so as to decrease the deformation of turnout beams in the rotation process. The present invention ensures that the turnout beams are not deformed substantially in the rotation process due to inadequate foundation stiffness, and meets the requirements for foundation strength and stability of the turnout beams.

Classes IPC  ?

• E01B 2/00 - Structure générale des voies de chemin de fer
• E02D 27/14 - Ensembles de pieux

Abrégé

An inter-segment limiting structure for track-bearing beams on a double-track section of a low-set mid-to-low speed magnetic levitation transportation project line, as well as a clawed-end inter-segment limiting structure for track-bearing beams, comprises two single-track structures, wherein, each single-track structure comprises roadbed ballast (9a, 9b) below the rail-bearing beams, bedding layers (8a, 8b) under the rail-bearing beams, two adjacent track -bearing beams, vertical dislocation-prevention butt straps (1a, 1b), transverse dislocation-prevention bosses (2a, 2b) and track-bearing beam backfill ballast (5a, 5b). The vertical dislocation-prevention butt straps (1a, 1b) are fixedly arranged on the roadbed ballast (9a, 9b) below the track-bearing beams and the lower ends thereof extend into the roadbed ballast (9a, 9b) below the track-bearing beams. The dislocation-prevention reinforced concrete butt straps are arranged between the segment positions of the track-bearing beams, and the track-bearing beams are arranged on the same reinforced concrete dislocation-prevention butt straps with certain rigidity, thereby effectively avoiding the problem of track profile irregularity caused by uneven settlement of the foundation below the track-bearing beams.

Classes IPC  ?

• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques
• E01B 2/00 - Structure générale des voies de chemin de fer
• E01B 1/00 - BallastAutres moyens pour supporter les traverses ou la voieAssèchement du ballast
• E01B 3/38 - LongrinesLongrines seules ou combinées avec des entretoisesTraverses et longrines combinéesAssises en béton supportant les deux rails

Abrégé

A CPIII planar network measurement method, comprising the following steps: (1) erecting an all-station measurement instrument between two CPIII points on a left and a right line, inserting a CPIII prism on the total 12 CPIII points composed of 6 pairs of points of the left and right lines in front of and behind the all-station measurement instruments, and on 3 CPIII connecting points arranged between the left and right lines; (2) when measurement of said station is complete, moving the last four prisms on the left and right lines and the final connecting prism between the right and left lines to the very front according to the forward direction of the measurement, and respectively moving forward the all-station measurement instruments on the left and rights lines to between the next but one pair of CPIII points, again erecting a station for measurement, and measuring the 15 CPIII points composed of the front and rear six pairs and the 3 connecting points between the left and right lines; repeating the observation in this way ensures that each CPIII point is observed at least 3 times, thereby implementing measurement of each CPIII point. The present method solves the problems of the CPIII control points of the magnetic-levitation track not being visible during the transport operating period as a result of being blocked by the middle evacuation platform of the left and right lines, and being unable to erect stations on the platform to implement observation.

Classes IPC  ?

• E01B 35/00 - Applications des appareils ou dispositifs de mesure à la construction des voies

Abrégé

A transitional structure for turnout and non-turnout zones on low-set, mid-to-low speed magnetic levitation lines comprises non-turnout zone reinforced concrete raft slabs (1), turnout zone reinforced concrete raft slabs (2), reinforced concrete turnout beam foundations (3), multiple rigid pile composite foundations (4), multiple reinforced concrete bored piles (5), non-turnout zone track-bearing beams (6), boss blocks (7), non-turnout zone track-bearing beam lapping platforms (8), trapezoidal filling bodies (9) under the non-turnout zone track-bearing beams, a roadbed (10) under the track-bearing beams (15) in the low-set tracks, roadbed ballast (15) on the outside of the non-turnout zone track-bearing beams. The structure can ensure that the turnout beams do not experience excessive deformation during the turning process due to insufficient rigidity of the foundations, and satisfies the requirements of foundation strength and stability.

Classes IPC  ?

• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques

Abrégé

An inter-segment limiting structure having clawed ends for track-bearing beam in a single track section of a low-set line of a mid-to-low speed magnetic levitation transportation project, comprising a roadbed ballast below the track-bearing beam (9), a bedding layer under the track-bearing beams (8), two adjacent track-bearing beam segments, a vertical dislocation-prevention butt strap (1), transverse dislocation-prevention bosses (2), and track-bearing beam backfill ballast (5). The vertical dislocation-prevention butt strap (1) is fixedly provided on the roadbed ballast below the track-bearing beam (9) and has lower ends extending into the roadbed ballast below the track-bearing beam (9). The dislocation-prevention reinforced concrete butt strap is provided at the position between segments of the track-bearing beam, and the track-bearing beam is provided on the same reinforced concrete dislocation-prevention butt strap having certain rigidity, effectively avoiding the problem of track profile irregularity caused by uneven settlement of the foundation below the track-bearing beam.

Classes IPC  ?

• E01B 25/00 - Voies pour types particuliers de chemins de fer
• E01B 2/00 - Structure générale des voies de chemin de fer
• E01B 1/00 - BallastAutres moyens pour supporter les traverses ou la voieAssèchement du ballast
• E01B 3/38 - LongrinesLongrines seules ou combinées avec des entretoisesTraverses et longrines combinéesAssises en béton supportant les deux rails

Abrégé

Disclosed are a damping and noise reduction device for a medium/low speed magnetic levitation turnout beam. The damping and noise reduction device comprises a pre-embedded board arranged on a bottom flange of the turnout beam and multiple tuning mass dampers installed on the pre-embedded board. Each of the tuning mass dampers comprises a main vibration system having arranged thereon a container provided with a built-in tuning damper. The containers are filled with damping liquid. By adjusting the mass, the rigidity and the damping coefficient parameters of the tuning damping mechanism and by adjusting the size of the containers and the depths of the damping liquid in the containers, the tuning damping mechanism can meet a mass tuning condition and a liquid tuning condition, such that mass tuning and liquid tuning are achieved. Hence damping and noise reduction of the turnout beam are achieved. Further disclosed is a corresponding damping and noise reduction method. On the premise that it is guaranteed that the turnout beam rotates in place within the required time, the vertical vibration acceleration of the turnout beam can be stably reduced to a safe standard with satisfactory leeway of 0.5 g for a long time, and control of the vibration of the turnout beam is achieved.

Classes IPC  ?

• E01D 19/00 - Détails des ponts

Abrégé

A connecting joint for an F-shaped steel rail (3a, 3b, 3c, 3d) is I-shaped, is of a half-chute type, a chute type or a buffering type, and structurally comprises a lower connecting plate (1a, 1b, 1c, 1d) disposed at the lower surfaces of wing plates (31a, 31b, 31c, 31d), and comprises a limiting boss (11a, 11b, 11c, 11d). The limiting boss (11a, 11b, 11c, 11d) is disposed at one side surface of the lower connecting plate (1a, 1b, 1c, 1d) in a protruding manner, and the surface of the raised end of the limiting boss (11a, 11b, 11c, 11d) is a flat surface. A vertical through groove (32a, 32b, 32c, 32d) matching one end of the limiting boss (11a, 11b, 11c, 11d) is correspondingly formed in each wing plate (31a, 31b, 31c, 31d) of the F-shaped steel rail, and the limiting boss (11a, 11b, 11c, 11d) on the lower connecting plate (1a, 1b, 1c, 1d) is inserted into a strip gap that is formed by the through grooves (32a, 32b, 32c, 32d) and a gap between the two wing plates (31a, 31b, 31c, 31d); the lower connecting plate (1a, 1b, 1c, 1d) is fixedly connected to the wing plates (31a, 31b, 31c, 31d) (31a, 31b, 31c, 31d) by allowing connecting pieces to penetrate through connecting holes (12a, 12b, 12c, 12d), so that the limiting boss (11a, 11b, 11c, 11d) penetrates out of the strip gap, the surface of the raised end is flush with the upper surface of each wing plate (31a, 31b, 31c, 31d), side surfaces are in full contact with the inner wall of each through groove (32a, 32b, 32c, 32d) in the corresponding wing plate (31a, 31b, 31c, 31d), and then the F-shaped steel rails (3a, 3b, 3c, 3d) are connected. The connecting joint can ensure that wheels always do not disengage from the wing plates (31a, 31b, 31c, 31d), so that the impact of a rail gap to traveling wheels is completely avoided.

Classes IPC  ?

• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques
• E01B 11/02 - Joints de rails démontables
• E01B 11/28 - Joints de rails démontables avec dispositifs de continuité par parties des éléments de jonction

Abrégé

A device for monitoring a void value of settlement of a rail support beam and the roadbed of a medium-low-speed magnetic suspension low line. The monitoring device comprises an inductive strainometer (1) and an inductive sensor testing instrument. The inductive strainometer (1) comprises a ground anchor threaded steel bar set (1.4), a lower flange plate (1.3), an induction coil (1.2), an upper flange plat (1.5), an anchor plate (1.6), and a magnet (1.1). The roadbed (8) can drive the induction coil (1.2) to settle synchronously when settlement happens. A rail support beam bottom slab (4) can drive the magnet (1.1) to settle synchronously when settlement happens. When the settlement generated by the roadbed (8) is different from the settlement generated by the rail support beam bottom slab (4), the magnet (1.1) and the induction coil (1.2) cut each other to generate currents, and accordingly the settlement difference value of the rail support beam bottom slab (4) and the roadbed (8) can be obtained by means of the inductive sensor testing instrument. Data reading is conducted outside a closed loop of the roadbed and is prevented from being affected by the closed loop, the large transportation load of a train, and rail arrangement space limitation of the top of the rail support beam, and the settlement difference value can be observed and measured at any time.

Classes IPC  ?

• B61K 9/08 - Installations de mesure pour surveiller la voie

Abrégé

A rail support beam low track and viaduct transition section structure for a medium-low-speed magnetic suspension traffic project. The structure comprises a roadbed, a bridge abutment (2), rail support beams (1), grouting pipes (5), and drainage ditches (7). The bridge abutment (2) comprises an abutment back body (2.1) and abutment cones (2.3). Each rail support beam (1) comprises a bottom slab (1.2) and an upper structure (1.1) disposed on the bottom slab (1.2), and the bottom slab is buried in the roadbed, and the bottom slab (1.2) extends downwards to form tenons (1.3) corresponding to tenon grooves (2.2). Each tenon (1.3) is placed in the corresponding tenon groove (2.2), and round corners are disposed on the tenons (1.3) and the tenon grooves (2.2), so that the tenons (1.3) can rotate in the tenon grooves (2.2). There are multiple grouting pipes (5), and the grouting pipes (5) are disposed in the roadbed. The rail support beams of a low track are in lap joint with the tenon grooves of a viaduct, so that settlement and slab staggering between the low track and the viaduct caused by different foundation treatment measures are avoided, the effect that settlement and slab staggering of a magnetic suspension F rail at the junction position of the low track and the abutment are avoided is ensured, and the requirements for smoothness of the F rail at the transition section between a viaduct structure and the low track of the magnetic suspension traffic project is effectively satisfied.

Classes IPC  ?

• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques
• E01D 19/02 - PilesCulées

Abrégé

A joggle joint type rail support beam structure for a middle and low-speed magnetic suspension traffic engineering low line. The joggle joint type rail support beam structure comprises reinforced concrete supporting structures; each reinforced concrete supporting structure comprises a reinforced concrete girder structure (1) and a reinforced concrete bottom plate (2). Each reinforced concrete bottom plate (2) comprises a bottom plate main body structure (2), a tenon (2.2), and a mortise (2.1). Round corners are disposed on each tenon (2.2) and each mortise (2.1), so that the tenon (2.2) can rotate in the mortise (2.1), accordingly, the adjacent two reinforced concrete bottom plates (2) can rotate relative to each other, and further, the reinforced concrete girder structures (1) supported by the two reinforced concrete bottom plates (2) can also rotate relative to each other. Because the tenons and the mortises are disposed to form tenon connection, settlement and dislocation caused between the adjacent reinforced concrete girder structures due to different foundation treatment measures are avoided, so that the smoothness requirements for a magnetic suspension traffic engineering overhead structure and a low line transition section F rail are effectively satisfied.

Classes IPC  ?

• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques

Abrégé

Method for recovering power supply after tripping activated for direct-current ground protection, comprising the steps of: (1) fault detection: a direct-current ground protection device being connecting to a power supply system for detecting a fault in the power supply system, wherein the power supply system comprises two uplink grid contact lines, two downlink grid contact lines and several feeder cabinets, any one of the feeder cabinets being connected to the two uplink grid contact lines or the two downlink grid contact lines; all the feeder cabinets are connected to the direct-current ground protection device; and when the direct-current ground protection device detects a fault, tripping occurs to all the feeder cabinets; and (2) response processing: according to whether the feeder cabinets are simultaneously connected to the two uplink grid contact lines and the two downlink grid contact lines, processing is carried out separately according to two conditions. Due to the improvements in the fault recognition principle of a power supply system, the method for recovering power supply after tripping activated for direct-current ground protection, and the like, the beneficial effects of high failure recognition rate and high power supply recovery speed can be achieved.

Classes IPC  ?

• H02H 3/06 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion Détails avec reconnexion automatique

Abrégé

A levitation frame moving aid suitable for medium to low speed maglev trains, which comprises a moving mechanism, a lifting mechanism and a supporting mechanism, wherein the moving mechanism comprises a supporting plate (1) and universal casters (2), the universal casters (2) being mounted on a bottom portion of the supporting plate (1); the lifting mechanism is mounted on the moving mechanism, comprising a base (3), a threaded stem (4), a worm gear (5), a worm (7) and a handwheel (6), the base (3) being mounted on a top portion of the supporting plate (1), the threaded stem (4) being vertically mounted on the base (3), and the worm gear (5) passing through the threaded stem (4) and threadedly connecting with the threaded stem (4); the handwheel (6) connects with the worm gear (5) by means of the worm (7); the supporting mechanism comprises a supporting sleeve (8) and a mounting plate (9), the supporting sleeve (8) sleeving on an external periphery of a top portion of the threaded stem (4) and connecting with the worm gear (5); the mounting plate (9) is mounted on a top portion of the supporting sleeve (8) for use in mounting and securing the levitation frames of medium to low speed maglev trains. The moving aid is integrated with both storage and moving aid functions of levitation frames, is multi-functional and low-cost, and enjoys advantages such as steady moving, accurate positioning and safe storage.

Classes IPC  ?

• B62B 3/02 - Voitures à bras ayant plus d'un essieu portant les roues servant au déplacementDispositifs de direction à cet effetAppareillage à cet effet comportant des parties réglables, rabattables, attachables, détachables ou transformables

Abrégé

Disclosed is a railway support structure for a maglev transportation project, comprising a railway beam (1), a fixed support (2), a movable support (3), and a contact rail (4). The length of the railway beam (1) extends along a longitudinal direction. The fixed support (2) is of a hollow shell structure, a left end thereof being fixedly mounted on the right side of the railway beam (1) by first bolts (5), a right end thereof being provided with elongated holes (21), wherein the length of the elongated holes (21) extends along a transverse direction. A left end of the movable support (3) extends into the right end of the fixed support (2) and is mounted on the fixed support (2) by second bolts (6), and the second bolts (6) extend through the fixed support (2) and pass through the elongated holes (21), so as to adjust the length of a portion of the movable support (3) extending into the fixed support (2), thereby adjusting the space between the movable support (3) and the railway beam (1). The contact rail (4) is fixedly mounted at a right end of the movable support (3), and a right side thereof serves as a current-collecting surface. Adopting the structure enables the contact rail to have a certain amount of regulation in a horizontal direction during mounting, and moreover, the strength of the contact rail support structure can be enhanced.

Classes IPC  ?

• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques

Abrégé

Disclosed is a side current-collecting contact rail system of a maglev project, comprising a contact rail body (1), a current-collecting stainless steel strip (2), and an end bend (3). One end of the end bend (3) is fixedly arranged on the contact rail body (1), the end bend (3) is bent towards a railway beam (4), and the other end of the end bend (3) is provided with a plane (31) parallel to one side of the railway beam (4) by cutting. The current-collecting stainless steel strip (2) is mounted on the contact rail body (1) and the end bend (3); and the end thereof close to the end bend (3) is bent into the shape of a hook and is bent towards the railway beam (4). The system can reduce impact on contact rails when collector shoes are introduced, thus increasing running safety and reliability.

Classes IPC  ?

• B60M 5/00 - Dispositions pour le passage du courant dans les rails porteurs ou dans leurs jonctions, ou pour l'isolement du courant, p. ex. dispositifs de sécurité pour réduire les courants de terre
• B60M 1/30 - Rails conducteurs

Abrégé

Provided is a double-track beam for magnetic-levitation rail-wrap-type rail transit, comprising a left box girder (2) and right box girder (3) erected on a bridge pier (1); the left box girder (2) and right box girder (3) are structurally identical; the left box girder (2) is mounted on the bridge pier (1) by means of a left support base (4), and the right box girder (3) is mounted on the bridge pier (1) by means of a right support base (5); the left support base (4) and right support base (5) are structurally identical; the right side of the left box girder (2) and the left side of the right box girder (3) are fixedly connected together by means of a crossbeam (6), and the cross-section of the crossbeam is an inverted T-shape; the crossbeam (6) is arranged directly above the bridge pier (1) and there is a spacing between the crossbeam (6) and the bridge pier (1). The left and right box girders are connected by means of the crossbeam and their overall stiffness is greatly enhanced, to three or more times better than that of individually arranged left and right single beams; accordingly, the improved stiffness significantly reduces the deformation of the structure when subjected to forces, thus satisfying the strict requirements concerning structural deformation in magnetic-levitation engineering projects.

Classes IPC  ?

• E01D 2/00 - Ponts caractérisés par la section transversale de la structure portante de la travée

Abrégé

Provided is a double-track beam for magnetic-levitation rail-wrap-type rail transit, comprising a left box girder (2) and right box girder (3) erected on a bridge pier (1); the left box girder (2) and right box girder (3) are structurally identical; the left box girder (2) is mounted on the bridge pier (1) by means of a left support base (4), and the right box girder (3) is mounted on the bridge pier (1) by means of a right support base (5); the left support base (4) and right support base (5) are structurally identical; the right side of the left box girder (2) and the left side of the right box girder (3) are fixedly connected together by means of a horizontal crossbeam (6), the horizontal crossbeam (6) has an overall rectangular cuboid shape, and is made of reinforced concrete; the horizontal crossbeam (6) is arranged directly above the bridge pier (1) and there is a spacing between the crossbeam (6) and the bridge pier (1). The left and right box girders are connected by means of the horizontal crossbeam (6) and their overall stiffness is enhanced, thus satisfying the strict requirements concerning structural deformation in magnetic-levitation engineering projects.

Classes IPC  ?

• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques
• E01D 2/04 - Ponts caractérisés par la section transversale de la structure portante de la travée du type à poutre en caisson
• E01D 19/12 - Caillebotis ou planchéiage des pontsFixation des traverses de rails ou de voies sur les ponts

Abrégé

Provided is a double-track beam for magnetic-levitation rail-wrap-type rail transit, comprising a left box girder (2) and right box girder (3) erected on a bridge pier (1); the left box girder (2) and right box girder (3) are structurally identical; the left box girder (2) is mounted on the bridge pier (1) by means of a left support base (4), and the right box girder (3) is mounted on the bridge pier (1) by means of a right support base (5); the left support base (4) and right support base (5) are structurally identical; the right side of the left box girder (2) and the left side of the right box girder (3) are fixedly connected together by means of a horizontal crossbeam (6), the horizontal crossbeam (6) has an overall cylindrical shape, and is made of concrete-filled steel tube; the horizontal crossbeam (6) is arranged directly above the bridge pier (1) and there is a spacing between the crossbeam (6) and the bridge pier (1). The left and right box girders are connected by means of the horizontal crossbeam and their overall stiffness is greatly enhanced, to three or more times better than that of individually arranged left and right single beams; accordingly, the improved stiffness significantly reduces the deformation of the structure when subjected to forces, thus satisfying the strict requirements concerning structural deformation in magnetic-levitation engineering projects.

Classes IPC  ?

• E01D 2/00 - Ponts caractérisés par la section transversale de la structure portante de la travée

Abrégé

A connection apparatus used between an active beam (8) and a buttress beam (7) of a turnout, comprising: two moving F rails transversely symmetrically arranged along a track; a connecting crossbeam (10) fixedly arranged on the lower surfaces, close to the buttress beam (7) end, of the two moving F rails along the track line direction, used for connecting the two moving F rails; and an angle adjusting mechanism disposed at the other end, opposite to the connecting crossbeam (10), of the two moving F rails, used for properly adjusting a relative deflection angle of the moving F rails and the active beam (8) of the turnout; and further comprising a supporting beam (1) disposed at the bottom of the connecting crossbeam (10), one end of the supporting beam being fixed to a supporting beam base (5) which is mounted on the active beam (8) of the turnout, the other end of the supporting beam extending toward one side of the crossbeam (10), and the extending end being fixed to the bottom of the connecting crossbeam (10). The connection apparatus can improve the vertical stiffness of the connecting apparatus between the active beam (8) and the buttress beam (7), and improve the stability of the connecting apparatus of the turnout.

Classes IPC  ?

• E01B 25/34 - AiguillagesCoeursCroisements
• E01B 25/00 - Voies pour types particuliers de chemins de fer

Abrégé

A fork poking device used between moveable beams of a maglev switch, comprising a fork poking hinge mechanism and a fork poking unit, the fork poking hinge mechanism comprising a base (7) and a hinge shaft (2) provided on the base (7), a sliding sleeve (3) and an antifriction plate (5) being coaxially sleeved on the hinge shaft (2) successively from inside to outside, the rotation of the hinge shaft (2) being able to drive the sliding sleeve (3) and the antifriction plate (5) to rotate; the fork poking unit comprises a fork poking plate (10), the middle portion of an extended end thereof being open to form an U shape having two legs; the hinge shaft (2) of the fork poking hinge mechanism and the sliding sleeve (3) and the antifriction plate (5) are used to pass through the opening of fork poking plate (10) such that, when the rotation of a driving beam drives the antifriction plate (5) to rotate, the fork poking plate (10) is driven by means of a frictional force to rotate accordingly, thereby driving a driven beam to rotate accordingly. Said fork poking device is not only able to ensure the driven beam to be driven to rotate together with the driving beam when the driving beam rotates, but also decreases the frictional resistance during the fork poking process, better smoothing the rotation of the driven beam driven by the driving beam, reducing the wear of the fork poking hinge mechanism, and improving the abrasion resistance performance and the service life of the fork poking device.

Classes IPC  ?

• E01B 25/34 - AiguillagesCoeursCroisements

Abrégé

A concrete-filled steel tube sleeper suitable for a ballastless track comprises two or more sleeper concrete blocks (2) and sleeper connecting pieces (3) for connecting the sleeper concrete blocks (2). The sleeper concrete blocks (2) have blocky structures, are formed by pouring concrete, and are internally provided with embedded parts (5) used for fixing steel rails (1), and reinforcing steel mesh pieces or stirrups connected to the sleeper connecting pieces (3); the sleeper connecting pieces (3) are formed by a plurality of hollow steel tubes which are arranged between the sleeper concrete blocks (2) along the transverse direction; and in a pouring process of the sleeper concrete blocks (2), the hollow steel tubes are internally filled with concrete at the same time, such that concrete-filled steel tubes are formed, and the sleeper connecting pieces (3) and the sleeper concrete blocks (2) are further enabled to form a whole by pouring. When being applied to a concrete sleeper of a ballastless track, concrete-filled steel tubes are taken as sleeper block connecting pieces, and the concrete-filled steel tubes and sleeper concrete blocks (2) are molded into a whole, such that the geometry maintaining ability of the sleeper is effectively improved, and the steel consumption is reduced. The present invention has the advantages of being simple in preparation, high in constructability, and the like.

Classes IPC  ?

• E01B 3/32 - Traverses ou longrinesAutres supports de rails reposant directement sur le ballast en béton, pierre naturelle ou artificielle avec armatures ou renforcement

Abrégé

A continuous beam type anti-floating structure of a shield tunnel, comprising bearing platforms (3) arranged longitudinally along a shield tunnel (2) at internals. The bearing platforms (3) are arranged transversely above the shield tunnel (2). An uplift pile (4) used for fixing is arranged below each bearing platform (3). A stratum reinforcing layer (5) used for integrally connecting the bearing platform (3), the uplift pile (4) and the shied tunnel (2) is arranged between the lower surface of the bearing platform (3) and the top surface of the shield tunnel (2).

Classes IPC  ?

• E02D 31/12 - Dispositions de protection pour les fondations ou ouvrages réalisés par des techniques de fondationMesures dans le cadre des techniques de fondation pour protéger le sol ou l'eau du sous-sol, p. ex. prévention ou neutralisation de la pollution par le pétrole contre la poussée du terrain ou la pression hydraulique contre la poussée hydraulique vers le haut

Abrégé

A lowly disposed line structure used in a medium-low speed magnetic levitation traffic engineering fill section comprises: multiple rail bearing beams (1), uniformly disposed in a forward direction of a line; a roadbed structure (2), located on the bottom of the rail bearing beams (1); and internode mistake-proof bedplates (3). Each rail bearing beam (1) comprises a track and guide track bearing structure (1.1) and a bottom plate (1.2) located on the track and guide track bearing structure (1.1). The width of the bottom plate (1.2) is greater than those of the track and guide track bearing structure (1.1). A gap (1.3) is formed between adjacent bottom plates (1.2). A cushion layer (4) is disposed between the bottom plate (1.2) of each rail bearing beam and the top surface of the roadbed structure (2). The internode mistake-proof bedplates (3) are disposed at the bottom of the gaps between adjacent bottom plates (1.2) and are located between adjacent cushion layers (4). Refilling protection layers (5) are disposed on the top of the roadbed structure (2) on two sides of the corresponding rail bearing beam (1). Waterproof sealing layers (6) are disposed on the surfaces of the refilling protection layers (5). Evacuation platforms (7) and auxiliary construction connector systems (8) are disposed on the tops of the refilling protection layers (6). The lowly disposed line structure can meet the requirements of stable operation of a magnetic-levitation train, has sufficient strength and deformation resistance capabilities, and can ensure long-term stability of a roadbed main body below the rail bearing beams in various natural environments.

Classes IPC  ?

• E01B 2/00 - Structure générale des voies de chemin de fer
• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques

Abrégé

An advanced support structure for an oversized variable-cross-section tunnel, comprising a tunnel cross section consisting of a main hole (1) to be excavated and side holes (2) to be excavated; the side holes to be excavated are located at two sides of the main hole to be excavated; two layers of high-pressure horizontal jet grouting piles (3) are arranged outside an arch crown of the main hole to be excavated along a tunnel excavation contour line; an advanced long pipe shed (4) is embedded between the two layers of the jet grouting piles; a layer of high-pressure horizontal jet grouting piles (3) is arranged outside the arch crowns of the side holes to be excavated along a tunnel excavation contour line; a plurality of high-pressure horizontal jet grouting piles (3) are arranged outside an arch foot between the side holes to be excavated and the main hole to be excavated along the tunnel excavation contour line; a plurality of high-pressure horizontal jet grouting piles is arranged at a tunnel face arch portion (5) of the main hole to be excavated in a tunnel excavation direction; and a plurality of advanced glass fiber anchor pipes (7) is arranged on tunnel face core soil (6) of the main hole to be excavated in the tunnel excavation direction. The advanced support structure ensures the excavation safety of an oversized variable-cross-section tunnel in particularly weak surrounding rock, reduces the use of temporary supports, increases the degree of freedom in operation, and accelerates a construction process.

Classes IPC  ?

• E21D 11/10 - Revêtement avec des matériaux de construction avec du béton coulé en placeCoffrage ou autre équipement adapté à cet effet
• E21D 21/00 - Boulons d'ancrage pour la protection du toit, de la sole ou du revêtement des puits

Abrégé

A method for constructing an extra-large variable cross section tunnel. The method comprises: excavating left pilot tunnels (11) and timely constructing primary supports and temporary supports; packing large boot-shaped wall feet (13) and constructing right pilot tunnels (12) by the same process; excavating the upper half part of the left side of a main tunnel (2) and timely constructing first-layer primary supports (23), temporary vertical braces (91) and temporary inverted arches; excavating the lower half part of the left side of the main tunnel (2) and timely constructing the first-layer primary supports (23) and the temporary vertical braces (91); constructing the upper half part of the right side of the main tunnel by the same process, and excavating a middle arch part and timely constructing the first-layer primary supports; constructing second-layer primary supports (24) and removing the temporary braces and the temporary inverted arches of the arch part; excavating a central part and timely constructing primary supports (8) of the inverted arches; removing the temporary supports (17) of the left and right lower pilot tunnels, packing the secondary lining of the inverted arches, and filling the bottom of the tunnel; and finally one-time packing the secondary lining (22) of the arch wall by means of a model board trolley. The construction method effectively reduces the safety risk of removing the temporary supports, increases the operation freedom degree and accelerates the construction schedule.

Classes IPC  ?

• E21D 11/10 - Revêtement avec des matériaux de construction avec du béton coulé en placeCoffrage ou autre équipement adapté à cet effet
• E21D 9/04 - Creusement de galeries en terrain de faible consistanceDispositifs à cet effet non prévus ailleurs

Abrégé

Disclosed is a support structure for a tunnel having ultra-large variable section, the support structure comprising, along an annular shape of the tunnel, a vault (11) at a top portion, an inverted arch (12) at a bottom portion, side walls (13) and pilot tunnels outside of the side walls (13) at two sides, and also comprising, along a radial direction of the tunnel, a secondary lining (2) at an inner layer; pilot tunnel primary supports (42) are disposed outside the secondary linings of the two side walls (13); a boot-type large wall footing (41) is cast between the pilot tunnel primary support (42) and the secondary lining at the two side walls; a primary support (31) is disposed, along the radial direction of the tunnel, on an outer surface of a secondary lining of the vault (11) and a secondary lining (21) of the inverted arch; an inner layer primary support (32) is disposed between the secondary lining and the primary support (31) of the vault; the primary support (31) of the vault and the inner layer primary support (32) are both supported by the boot-type large wall footing (41); and the primary support of the inverted arch is supported by the pilot tunnel primary support (42). The support structure can better overcome insufficient bearing capacity of a soft foundation, and provide a stable foundation for the upper portion of the structure.

Classes IPC  ?

• E21D 11/10 - Revêtement avec des matériaux de construction avec du béton coulé en placeCoffrage ou autre équipement adapté à cet effet
• E21D 9/04 - Creusement de galeries en terrain de faible consistanceDispositifs à cet effet non prévus ailleurs

Abrégé

A medium-low speed maglev traffic engineering low arrangement line curve bearing rail beam structure, comprising: a bearing rail beam body (1), a sleeper pedestal (7) fixed at the top portion of the bearing rail beam body (1), a track skeleton (9) fixed at the top portion of the sleeper pedestal (7), a reinforced concrete bottom plate (2) fixed on a horizontal roadbed face (8), and a guide rail (6) provided on two sides of the bearing rail beam body (1); a top face of the reinforced concrete bottom plate (2) is obliquely arranged with respect to a horizontal plane, an included angle formed between the horizontal plane and the top face of the reinforced concrete bottom plate(2) being α1; a bottom face of the bearing rail beam body (1) is fixedly connected to the top face of the reinforced concrete bottom plate(2); axes of the bearing rail beam body (1), the sleeper pedestal (7) and the track skeleton (9) are each perpendicular to the top face of the reinforced concrete bottom plate(2); and the included angle formed between a rail center line (4)and a track skeleton center line (10) of the track skeleton (9) is α, included angle α1 = included angle α, thus satisfying the mounting requirement of an maglev vehicle connecting rail, not increasing building difficulty of earthwork foundation under the bearing rail beam, and not reducing long-term stability thereof.

Classes IPC  ?

• E01B 1/00 - BallastAutres moyens pour supporter les traverses ou la voieAssèchement du ballast
• E01B 25/30 - Voies pour véhicules à suspension ou à sustentation magnétiques

Abrégé

Disclosed is a rail holding type magnetic levitation track transit box girder. The box girder comprises a top plate (1), a bottom plate (2) and a web plate (3) located between the top plate (1) and the bottom plate (2). The top plate (1), the bottom plate (2) and the web plate (3) are of a reinforced concrete structure formed by overall pouring. Bosses protruding outwards which are used for mounting a magnetic levitation track are arranged at two side ends of the top plate (1). Wing plates (4) which stretch out in upwardly inclined directions are arranged on the two sides of the bottom plate (2). A mounting platform (9) is arranged at the top end of the wing plate (4). The mounting platform (9) is provided as a boss structure which stretches out towards the outer side in the horizontal direction, can be used for arranging a pedestrian footpath and an evacuation exit, and can also be used for arranging track traffic accessory facilities such as an inspection gallery, guardrails, a noise barrier, a signal machine and an AP antenna, and daily maintenance of a line is facilitated. The wing plates of the box girder shield on-bridge tracks, trackside equipment, cables and the like, and the landscape effect is markedly improved.

Classes IPC  ?

• E01D 2/04 - Ponts caractérisés par la section transversale de la structure portante de la travée du type à poutre en caisson

Abrégé

A prefabricated aseismic structure having a lining shield tunnel is characterized in that a first deformation seam (2) is formed between annularly adjacent segment linings (1); a waterproof elastic sealing gasket (3) is disposed in the first deformation seam; a second deformation seam (5) is formed between annularly adjacent linings (4); and the second deformation seam is provided with an aseismic waterproof connecting part (6) allowing annular displacement of the second deformation seam. By means of the prefabricated aseismic structure, integral rigidity of the lining shield tunnel can be effectively reduced, the ability of the prefabricated aseismic structure to adapt to the deformation and additional loads under the action of earthquakes is enhanced, and aseismic performance of the prefabricated aseismic structure is improved.

Classes IPC  ?

• E21D 11/00 - Revêtement de tunnels, galeries ou autres cavités souterraines, p. ex. de vastes chambres souterrainesRevêtements à cet effetLeur exécution sur place, p. ex. par assemblage
• E21D 11/38 - Imperméabilisation à l'eauCalorifugeageImperméabilisation acoustiqueIsolation électrique

Abrégé

A correction method and a correction structure for a ballastless track subgrade of a high-speed railway in a soft soil region. The method comprises: step 1: when lateral displacement of a high-speed railway embankment (3) occurs, providing a deformation groove (8) and multiple stress relief holes (10) in an asymmetrical load area (5) on the top of a first soft stratum area (4), filling the deformation groove (8) with rigid foam (9), and filling up the stress relief holes (10) with medium-coarse sand or rubbles; step 2: providing a rotary jet grouting pile (7) in a second soft stratum area (6), and driving a pile foundation reinforcement area (1) located at the bottom of the high-speed railway embankment (3) to displace from the second soft stratum area (6) to the first soft stratum area (4) by using an instantaneous injection pressure generated by the construction of the rotary jet grouting pile (7), and driving, by the pile foundation reinforcement area (1), a subgrade reinforcement bed course (2) located above the pile foundation reinforcement area as well as the high-speed railway embankment (3) to simultaneously move, thereby correcting the subgrade; and steps 3: densely filling the deformation groove (8) with a solidifying material. The method does not interrupt the operation of a railway and does not damage the structure of a track, and facilitates construction.

Classes IPC  ?

• E02D 35/00 - Redressement, soulèvement ou affalement des fondations ou des constructions érigées sur des fondations
• E02D 5/46 - Pieux en béton ou analogue coulés en place réalisés sur place par injection de liants dans des remblais graveleux ou dans le sol

Abrégé

A leakage coaxial cable fixture, comprising a support seat 1, a cover plate 2 hingedly connected to the support seat, and a locking piece 3 for locking the support seat and the cover plate; the arc-shaped locking piece locks the cover plate and the cable bearing part 5 of the support seat to form an annular fixture, clamping a leakage coaxial cable by being applied with force circumferentially; and an elastomeric sheath 27 used compatible with the leakage coaxial cable fixture is disposed, and adsorbs vibration and stress from the cover plate and the cable bearing part to protect the cable bearing part and the cover plate against abrasion.

Classes IPC  ?

• F16L 3/10 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers entourant pratiquement le tuyau, le câble ou le conduit de protection fractionnés, c.-à-d. à deux éléments en prise avec le tuyau, le câble ou le conduit de protection
• F16L 3/12 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers entourant pratiquement le tuyau, le câble ou le conduit de protection comportant un élément entourant pratiquement le tuyau, le câble ou le conduit de protection

Abrégé

A support system for a large karst cave tunnel comprising a column support structure and a frame tunnel structure, wherein the column support structure being arranged on two sides of the tunnel in the karst cave for supporting the top (2) of a karst cave (1); the frame tunnel structure consisting of a lower tunnel frame (7) and an upper support frame, the upper support frame being arranged above the lower tunnel frame and joined as one unit; the inside contour of the tunnel cavity of the lower tunnel frame is identical to a normal tunnel; the upper support frame extending to the top (2) of the karst cave (1). A cavity with an open upper part is arranged on the top of the upper support frame, the open part of the cavity corresponding to the top of the karst cave, and the cavity is backfilled with concrete (8) and closely contacting the top of the karst cave. The large karst cave tunnel support system employs the column support structure and the frame tunnel structure for the active protection of the top of the karst cave, prevents damages to the tunnel structure when the unstable rock mass of the karst cave top plate falls, fully utilizes the protection capability of the structure, reduces the project cost, and ensures the safety and reliability of the tunnel structure.

Classes IPC  ?

• E21D 9/14 - Tracé des tunnels ou des galeriesParticularités de construction des tunnels ou des galeries, non prévues ailleurs, p. ex. têtes, atténuation de la lumière du jour aux entrées de tunnels
• E21D 11/00 - Revêtement de tunnels, galeries ou autres cavités souterraines, p. ex. de vastes chambres souterrainesRevêtements à cet effetLeur exécution sur place, p. ex. par assemblage
• E21D 11/10 - Revêtement avec des matériaux de construction avec du béton coulé en placeCoffrage ou autre équipement adapté à cet effet