Flexible membraneous weir

Details Flexible membraneous weir Flexible membraneous weir

1985-02-11

1987-05-05

Corbin, David H.

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

405 87, E02B 700

Patent

active

046627839

ABSTRACT:
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.

REFERENCES:
patent: 4167358 (1979-09-01), Besha

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