Liquid and flood water barrier wall forming apparatus

Details Liquid and flood water barrier wall forming apparatus Liquid and flood water barrier wall forming apparatus

E - Fixed Constructions

02

B

E02B 3/00 (2006.01)

Patent

CA 2149060

A liquid barrier system includes a structure forming a below ground level float-receiving chamber. An inlet passageway for ground water or other liquid directs the liquid into the bottom of said chamber to fill the chamber when it is desired that a barrier wall-forming part of the barrier system is to rise above ground level. Where the barrier system is a flood water barrier, the chamber bottom connects with a sewer system so that the chamber does not fill unless flood risk conditions exist, as when sewer back-up occurs. A float structure with which the barrier wall is associated is vertically movable in the chamber from a bottommost position therein when there is no liquid build up therein to an uppermost position when said liquid rises therein where the barrier wall is substantially above ground level. Seals are provided which prevent the liquid from gaining access to said one side of the barrier wall. The seal preferably include surfaces on the housing structure and surfaces on the float structure which surfaces engage and are pressed into sealing relation by the buoyancy forces on the float structure when it reaches its uppermost position.

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