A system and a method for providing preformed vertical access tunnels for testing foundation structures is described. The system comprises a structural cage having vertical structural members and confining structural members, and tubing running generally vertically and removably attached to the structural cage. The method of providing preformed vertical access tunnels for testing foundation structures comprises providing the system and an excavated hole, introducing the system into the excavated hole, pour concrete into the hole to encase structural cage, pressuring the removable tubing thereby expanding the diameter of the tubing, allow the concrete to cure while the tubing remains expanded by pressure, de-pressuring the tubing after the concrete has cured, and extracting the tubing thereby leaving generally vertical access tunnels in the foundation for testing.
An offshore submergible platform system and methods of manufacturing and installing same is disclosed. The system comprises a platform comprising concrete and a buoyant foam suitable to provide the required buoyancy to allow the platform to float, a template slab for placing on the ocean floor and positioning the system components in the proper location, a plurality of anchored tension legs which are preferably grouted into the ocean floor at installation, a stub tower preferably cast on top of the platform, and a plurality of cable braces preferably forming an X between the platform and the bottom of the anchor legs. Preferred embodiments can include additional lateral anchor ties and a work platform to be positioned atop the stub tower.
B63B 35/44 - Constructions, magasins, plates-formes de forage ou ateliers flottants, p. ex. portant des appareils séparateurs huile-eau
B63B 5/14 - Coques caractérisées par leur construction en un matériau non métallique à prédominance de ciment, p. ex. ciment armé
B63B 21/50 - Dispositifs d'ancrage pour navires spéciaux, p. ex. pour plates-formes flottantes de forage ou dragues
B63B 75/00 - Construction ou assemblage de structures flottantes en pleine mer, p. ex. plateformes semi-submersibles, plateformes SPAR ou plateformes d’éoliennes
A method of installing a reusable security barrier is presented that allows quick installation and removal. In one preferred embodiment, the method comprising providing precast concrete panels having a generally rectangular profile elevation, digging a foundation trench having a length equal to or longer than the panel width, lifting and placing the panel such that a portion of the panel is inserted inside the trench and a portion extends generally vertically upward from the trench forming a barrier, and filling and packing the portion of the trench unfiled by the panel with a filler material to provide a solid foundation. The method can further comprise utilizing multiple panels placed side edge to side edge with their bottom portions inserted inside a trench to form a longer security barrier. The method can further comprising removing the precast concrete panels from the trench for reuse in a second site security barrier when the original security barrier is no longer needed.
E04B 1/04 - Structures constituées principalement d'éléments porteurs en forme de blocs ou de dalles les éléments étant en béton, p. ex. en béton armé, ou en un autre matériau pierreux
E02D 5/30 - Pieux préfabriqués en béton ou béton armé ou en acier et béton
E04H 17/16 - Clôtures construites en éléments rigides, p. ex. avec des panneaux de fil de fer supplémentaires ou avec des poteaux utilisant des éléments préfabriqués genre panneaux, p. ex. châssis en fil métallique
E04H 17/14 - Clôtures construites en éléments rigides, p. ex. avec des panneaux de fil de fer supplémentaires ou avec des poteaux
A security barrier is presented for preventing unauthorized persons or vehicles from easily crossing a border. In one preferred embodiment, the security barrier is suitable for installation in a waterway and comprises: (1) a plurality of piles, each pile having a bottom end embedded into the earth and a top end extending vertically upward; (2) an open security grid juxtaposed between and secured by the piles, wherein the grid preferably has a bottom end that extends downward below the surface between the piles toward the earth; (3) at least one rigid wall panel also juxtaposed between and secured by the piles on top of the open security grid, thereby forming a security barrier that allows water, air, aquatic life, and birds to pass through the barrier, but restricts the movement of humans and vehicles across the barrier.
E04B 1/04 - Structures constituées principalement d'éléments porteurs en forme de blocs ou de dalles les éléments étant en béton, p. ex. en béton armé, ou en un autre matériau pierreux
E04H 17/16 - Clôtures construites en éléments rigides, p. ex. avec des panneaux de fil de fer supplémentaires ou avec des poteaux utilisant des éléments préfabriqués genre panneaux, p. ex. châssis en fil métallique
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