Method for realizing seepage prevention of bridge wall by means of polyvinyl chloride film

Abstract

The invention relates to a method for realizing seepage prevention of a bridge wall by means of a polyvinyl chloride film. The polyvinyl chloride film is arranged at the center of a bridge core wall, a sand mat layer is arranged at the bottom of the bridge wall, a polyvinyl chloride film seepage prevention wall is arranged in the middle of the bridge wall, transition material layers are arranged on two sides of the polyvinyl chloride film seepage prevention wall, a dam shell is arranged outside the transition material layers, a dry stone pitching is arranged on the surface of the dam shell, and the polyvinyl chloride film in the polyvinyl chloride film seepage prevention wall vertically ascends in a zigzag folded manner. A core wall type rockfill dam is effectively built in a place without proper impervious soil, the problem of settlement deformation of the core wall type rockfill dam built on a soft soil foundation is solved, cost is saved, construction period is shortened, and fine social and economic benefits are achieved. Combined positions of the polyvinyl chloride film and the top of the seepage prevention wall and two bank slopes are feeble in seepage prevention, the polyvinyl chloride film is fixed through a pressing plate by the aid of a concave groove, concrete is backfilled, and the seepage prevention effect of the combined positions is improved.

Description

Technical field [0001] The present invention belongs to the field of water conservancy and hydropower and civil engineering, and is specific to a method of preventing seepage in the center of the dam of the dam of the dam of the dam. Background technique [0002] The stacked stone dam is a relatively ancient and mature dam type. Mostly, the upstream surface concrete panel anti -seepage and clay heart wall anti -seepage type.With the rapid development of the technology of geomorphism synthetic materials, Pigvlocchia membrane has valued the engineering community due to superior anti -seepage and good adaptation of deformation, especially in water conservancy projects.For decades, polyvinyl chloride membranes have obtained the anti -seepage and old dam and reinforcement reinforcement in the project in the project of the earth and rock dams (including dikes, earth dams, pebble dams, stacked stone dams, stacks, and stone dams) projects at home and abroad.Many applications have been us...

AI Technical Summary

Problems solved by technology

The present invention specifically relates to a method for anti-seepage by placing a polyvinyl chloride membrane in the center of the core wall, which is different from the scheme adopted by other projects, and there is no relevant report in the literature of the same type of rockfill dam in China

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