E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
E02F 5/10 (2006.01) E03F 3/04 (2006.01)
Patent
CA 2185792
A trench forming assembly for forming a trench of predetermined shaped is disclosed according to the present invention. The assembly includes a pair of elongate frame members for defining a support surface for supporting a trench cover and at least one downwardly extending leg attached to each frame member for anchoring the frame members in a predetermined location. The assembly also includes a form body for shaping a hardenable trench forming composition into the predetermined shape of the trench and having an upper surface, opposed side surfaces and a bottom surface. The trench forming assembly further includes at least one counterbuoyancy member extending between the frame members and having a generally downwardly facing engagement surface for operatively engaging a portion of the upper surface of the buoyant form body between the frame members. The counterbuoyancy member can also have an upper surface, opposite the engagement surface, for operatively engaging the elongate frame members. Accordingly, the combination of the counterbuoyancy member, the pair of elongate frame members and the downwardly extending legs cooperate to substantially counterbalance the buoyant form body against upward flotation forces applied to the form body by a hardenable trench forming composition poured around portions of the buoyant form body.
La présente invention concerne un ensemble de coffrage de caniveau (10) permettant de couler un caniveau d'une forme définie. L'ensemble (10) comporte deux éléments de bâti (22, 24) servant à définir une surface support, sur laquelle reposera un couvercle de caniveau, et au moins un fer vertical descendant d'un point de fixation sur chacun des éléments de bâti. Ce fer permet d'ancrer les éléments de bâti à un emplacement défini. L'ensemble comporte également un bloc de coffrage (12) permettant de donner à la composition durcissable utilisée pour couler la tranchée la forme définie du caniveau. Ce bloc de coffrage présente une face supérieure, des flancs opposés et un fond. L'ensemble de coffrage de caniveau comporte en outre un élément contrant la poussée hydrostatique (42), disposé entre les éléments de bâti, et présentant une surface de contact généralement orientée vers le bas, et qui sert à être en contact, entre les éléments de bâti, avec une partie de la face supérieure du bloc de coffrage soumis à la poussée hydrostatique.
Abt Inc.
Sim & Mcburney
LandOfFree
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