A Buoyancy Geomembrane Device for Preventing Dam Break from Overburden

Abstract

The invention discloses a buoyancy geomembrane device for preventing overburden dam failure. A wave-retaining wall is arranged on the dam crest on the upstream side, and a rectangular groove is fixed on the side wall of the wave-retaining wall facing the water. The length direction is parallel to the height direction of the wave wall, and several water inlet holes are opened on the side wall near the top of the rectangular groove, and a floating ball is arranged in the rectangular groove; the lower end of the floating ball is connected with one end of the corrosion-resistant metal wire, and the rectangular groove One end of the PVC pipe is fixed at the bottom, the other end of the PVC pipe is located in the dam crest, and the other end runs through the dam crest, protruding out of the downstream side wall of the dam crest, and the other end of the corrosion-resistant metal wire passes through the PVC pipe and protrudes The downstream side wall of the dam crest is connected with the support. The invention is installed under the anti-wave wall, and automatically deploys the geomembrane to protect the dam crest and the downstream surface from being scoured when flooding occurs, greatly reducing the scouring damage of the dam body, reducing the possibility of dam failure, and extending the length of the small earth-rock dam service life.

Description

technical field [0001] The invention relates to the technical field of geomembrane, in particular to a buoyancy type geomembrane device for preventing flooding and dam failure. Background technique [0002] Reservoirs are important infrastructures of every country, and for our country, reservoirs are an important part of every comprehensive flood control engineering system. Although it has been many years since the first dam was built in our country, and dam engineering technology is constantly improving, incidents of reservoir failures still occur every year. Most of the dam-broken reservoirs are earth dams, accounting for 94.5% of the dam-breaks. If the earth-rock mixed dams with similar structural properties are added, the proportion is as high as 95.8%. Most of the reservoirs composed of earth-rock dams are located in remote hilly areas, condescending, and when they burst, the reservoir water suddenly leaks, causing the downstream water level to skyrocket and the reserv...

AI Technical Summary

Problems solved by technology

The dam break wave formed by this kind of dam break may not only cause bank collapse and other losses in the reservoir area, but more seriously, it will lead to disastrous consequences in the downstream areas of the reservoir.

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