Flexible membraneous weir

Details Flexible membraneous weir Flexible membraneous weir

E - Fixed Constructions

02

B

61/38

E02B 7/00 (2006.01)

Patent

CA 1229992

ABSTRACT OF THE DISCLOSURE A flexible membraneous weir is disclosed. When air once filled in an air type flexible membrane weir is discharged in order to cause it to collapse, its membraneous wall is deformed in a V-shape at one portion in the river width direction, and a stream concentrates into this portion. However, the portion where the V-deformation will be formed is not certain. Therefore, it is required to reinforce the whole area of the river-bed and the river wall at the down stream side. In view of the foregoing, means is provided for starting V-deformation onto a bag-shaped member as a main body of the weir in a predetermined portion at a time when the bag-shaped member is collapse from its erected state. With this arrangement, the stream can be concentrated on the predetermined portion only. Therefore reinforcement is required only for a river-bed portion corresponding to this portion.

475108

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