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

A technology of polyvinyl chloride membrane and dam wall, which is applied in the direction of dams, barrages, weirs, etc., to achieve the effects of reducing land acquisition and resettlement, saving construction period and low construction cost

Inactive Publication Date: 2012-09-12
SINOHYDRO BUREAU 14 CO LTD
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  • Abstract
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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, whic

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

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Example Embodiment

[0020] The method for preventing seepage of dam walls with polyvinyl chloride membranes of the present invention is to adopt polyvinyl chloride membranes and place them in the center of the dam core wall for seepage prevention. The anti-seepage dam wall is composed of: the bottom of the dam is a sand cushion layer 1 and the middle is The PVC membrane cut-off wall 2 and the concrete cut-off wall are the transition material layer 3, the outer layer of the transition material layer is the dam shell 2, and the surface of the dam shell is the stone slope protection 5, such as figure 1 Shown. The PVC membrane in the PVC membrane impervious wall is arranged in a zigzag shape to fold and rise in the vertical direction, such as Figure 4 Shown.

[0021] The construction method of concrete cut-off wall is as follows:

[0022] 1) Treatment of polyvinyl chloride membrane impervious wall wall head 8: The wall head of the impervious wall is the weak position of the impervious wall pouring qual...

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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...

Claims

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Application Information

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IPC IPC(8): E02B7/06
Inventor 李新才涂志军叶剑阮应宾李浩刘浩庞崇林孔伟王江卫林赛菁邵艳青
Owner SINOHYDRO BUREAU 14 CO LTD
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