Multi-stage self-bursting geosynthetic material earth-rockfill emergency spillway

Abstract

The invention discloses a multi-stage self-bursting geosynthetic material earth-rockfill emergency spillway and belongs to the hydraulic engineering of emergency spillway engineering. Emergency spillway controllable flood diversion is achieved, disastrous dam breaking surge is avoided, and people and livestock have the escape chance through flood diversion when encountering over-standard flood. The multi-stage self-bursting geosynthetic material earth-rockfill emergency spillway is mainly characterized in that the top of an over-water earth dam (2) is connected with a geosynthetic material scale-shaped protective face (4), the upstream side of the geosynthetic material scale-shaped protective face (4) is connected with a trash rack (3), the top of the geosynthetic material scale-shaped protective face (4) is connected with a protective earth layer (6), the downstream side of the top of the over-water earth dam (2) is provided with a geosynthetic material protective multi-stage self-bursting earth dam (5), and the geosynthetic material scale-shaped middle protective face is formed in the mode that rope-tied non-woven fabric penetrates through scale-shaped units (IV). The multi-stage self-bursting geosynthetic material earth-rockfill emergency spillway is applicable to reservoir auxiliary dam, main dam, high dike, high headwork barrage emergency floor diversion, is simple in structure, convenient to implement, low in manufacturing cost, safe and reliable, and does not occupy land all the time.

Description

technical field [0001] The invention belongs to the technical field of spillway water conservancy engineering, and in particular relates to a multi-stage self-collapsing geosynthetic earth-rock spillway. Background technique [0002] On September 10, 2015, an embankment burst occurred in Japan, and entire houses and rows of vehicles were washed away, causing many casualties and missing, and a large amount of property loss. Once the reservoir dam is flooded, it will be a catastrophe. The case of the catastrophe and the huge economic loss that destroys generation shows that solving the super-standard flood dam water damage is a technical problem that needs to be solved urgently to ensure the national economy and the people's livelihood, and illustrates that the present invention will produce huge social and economic benefits. [0003] The case of a reservoir dam break shows that large dam break surges will destroy reservoirs, bridges, canal heads, embankments, houses, etc. in ...

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Problems solved by technology

[0007] Purpose of the present invention: provide multi-stage self-collapsing geosynthetic material earth-rock super spillway, utilize the flood discharge beach land water damage mechanism, construct the dam disaster prevention and mitigation design theory on the basis of existing design theory and norms, solve the problem with limited normative flood standards It can not solve the theoretical problem of dam failure of infinite super-standard flood, solve the problem that the existing flood diversion engineering structure cannot resist super-standard flood, solve the problem of uncontrollable flood diversion of auxiliary dams, solve the problem of flood diversion of reservoirs without special spillways, and solve the problem of river embankment, canal head Flood diversion of engineering dams; provide a flood diversion project with simple structure, convenient construction, low cost, safe and reliable disaster prevention and mitigation, prevent the dam from exceeding the standard flood flooding the dam and dam break, avoid devastating dam break surges, and ensure that unforeseen People and animals have a chance to escape when resisting super-standard floods, so as to prevent flood fighting and rescue teams from falling into danger and desperation

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