Trench forming assembly and method

Details Trench forming assembly and method Trench forming assembly and method

E - Fixed Constructions

01

C

E01C 11/22 (2006.01) E01C 19/50 (2006.01) E02B 5/00 (2006.01) E02F 5/10 (2006.01) E02F 5/12 (2006.01) E03F 3/04 (2006.01)

Patent

CA 2080136

An assembly (10) for forming a trench (T) includes one or more frame members (16) that cooperate with a removable form (12) aroundwhich a moldable trench forming composition (C) is poured. The form is made of deformable buoyant material such as expanded polystyrene. Rebar legs (18) are attached to the frame members to provide secure anchoring of the frame members to both the ground (E) and in the trench forming composition. Preferably, each frame member includes a horizontal leg that is received in a slot (22) formed in one of the opposing sidewalls of the form. Wire strands (28) are placed within cooperating guide tracks (24) in the opposed ends of the form. The wire strands are pulled through to deform the form after the composition has hardened.

Dispositif (10) permettant de former une tranchée (T), comprenant un ou plusieurs éléments de cadre (16) qui coopèrent avec une forme amovible (12) autour de laquelle on verse une composition (C) de moulage formant une tranchée. La forme est réalisée dans un matériau flottant et déformable tel que du polystyrène expansé. Des barres nervurées (18) sont fixées sur les éléments de cadre pour assurer le bon ancrage des éléments de cadre dans le sol (E) et dans la composition formant la tranchée. Chaque élément de cadre comprend de préférence une patte horizontale qui vient se loger dans une fente (22) formée dans une des parois latérales opposées de la forme. Des trous (28) sont placés dans des fentes de guidage associées (24) situées dans les extrémités opposées de la forme. Les torons sont poussés à l'intérieur de la forme pour la déformer lorsque la composition a durci.

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