Abrégé

A cutter head for tunneling equipment, comprising a base (10) and a cutter. The base can rotate around a rotation axis (AX1) in a tunneling direction of the tunneling equipment; the cutter comprises a plurality of radial hob groups arranged at intervals in a circumferential direction defined with respect to the rotation axis, and each radial hob group comprises a plurality of radial hobs (21) arranged from the rotation axis and in a radial direction defined with respect to the rotation axis, wherein a rotation axis (AX2) of each radial hob is perpendicular to the rotation axis of the base; the radial hobs in each radial hob group retreat in the tunneling direction by a predetermined distance relative to the adjacent radial hobs located on the radial inner side, so that the front ends of all the radial hobs in the radial hob group can be located on the same fitting arc. The hobs of the cutter head form an arc profiling fitting curve, can well adapt to the arc-shaped structure of a main tunnel segment, and are suitable for cutting operation for the main tunnel segment in the process of mechanical method connection channel construction; hob shafts are uniform in stress, thereby avoiding eccentric wear, and prolonging the service life. The present invention further relates to tunneling equipment having the cutter head.

Classes IPC  ?

• E21D 9/11 - Exécution en utilisant des machines à forer ou à inciser avec une tête de forage de type rotatif coupant simultanément toute la section transversale, c.-à-d. tunneliers pleine-face

Abrégé

Provided in the present application are a jacking system for contact channel tunneling construction and a construction method using same. The jacking system comprises a reaction frame and a force transmission component. The force transmission component connects the reaction frame to a main tunnel segment which is located on the side of the reaction frame facing a contact channel and which surrounds an originating end of the contact channel. The reaction frame is used for providing support for a tunneling device in a tunneling direction, a support force being transmitted via the force transmission component to the main tunnel segment surrounding the originating end of the contact channel. In the jacking system of the present application, a back support is omitted, thus simplifying a structure, making the whole system intensive, and releasing a back space of the reaction frame, thereby providing spatial convenience for synchronous construction of a plurality of contact channels and synchronous construction of a contact channel and a main tunnel. The jacking system achieves low manufacturing costs; and since the jacking system is convenient to operate and saves construction space, and multiple construction procedures can be synchronously carried out, thereby obviously lowering construction costs.

Classes IPC  ?

• E21D 15/00 - ÉtançonsCales
• E21D 11/08 - Revêtement avec des matériaux de construction avec des plaques de béton préfabriquées
• E21D 9/00 - Tunnels ou galeries, avec ou sans revêtementsProcédés ou appareils pour leur exécutionTracé des tunnels ou des galeries