Seepage-proofing type water conservancy dam and building method

Abstract

The invention discloses a seepage-proofing type water conservancy dam and a building method. The seepage-proofing type water conservancy dam comprises a dam body. A reinforcing steel bar support is arranged on the inner side of the dam body. A tilted front side slope and a tilted rear side slope are arranged on the two sides of the dam body correspondingly. A reinforcing layer, a seepage-proofinglayer and a surface layer are sequentially arranged on the outer side of the front slope. The reinforcing layer comprises a plurality of J-shaped hooked claw sets. Each J-shaped hooked claw set comprises a plurality of J-shaped hooked claws which are horizontally arrayed. One end of each J-shaped hooked claw is connected with the reinforcing steel bar support, and the other end of each J-shaped hooked claw is provided with a cement supporting frame of the rectangle structure. The inner side of each cement supporting frame is filled with concrete. The seepage-proofing layer comprises a waterproof cloth. Four annular woven belts are arranged on the periphery of the waterproof cloth. Each annular woven belt is internally provided with a steel wire rope in a penetrating mode, and the two endsof each steel wire rope are connected with the J-shaped hooked claws on the outer side of the waterproof cloth. Each steel wire rope is sleeved with a plurality of positioning rings at intervals. Theseepage-proofing type water conservancy dam has the beneficial effect that impact resistance and seepage capability are good.

Description

technical field [0001] The invention relates to a water conservancy dam, in particular to an anti-seepage type water conservancy dam and a construction method. Background technique [0002] A dam is a waterproof building and structure, mostly made of reinforced concrete, to protect water conservancy hubs, river embankments and ocean banks from being washed away by floods or tides, to prevent sediment from blocking rivers and soil erosion, protection of vegetation. However, since the dam is usually built in a deep and narrow valley, it needs to bear the high water pressure from the bottom of the dam, and also needs to bear the impact force from the water flow during the flood season and flood; After a large impact, surface damage often occurs, and the concrete structure inside the dam is rapidly lost under the continuous impact of the water flow, which seriously affects the water retention effect and service life of the dam. In addition, the dam often leaks after long-term ...

AI Technical Summary

Problems solved by technology

However, since the dam is usually built in a deep and narrow valley, it needs to bear the high water pressure from the bottom of the dam, and also needs to bear the impact force from the water flow during the flood season and flood; After a large impact, the surface will often be damaged, and the concrete structure inside the dam will be lost rapidly under the continuous impact of the water flow, which will seriously affect the water retention effect and service life of the dam

In addition, the dam often leaks after long-term use. After the water flow enters the leak, it will form a pressure flow and overflow from the backwater slope, so that the leak will continue to expand under the effect of the water flow, reducing the water retention effect of the dam and There is a hidden danger of dam failure, and the safety is poor

Therefore, the existing dams have the problems of poor impact resistance and anti-seepage ability

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