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Film unloading system and method for flexible vertical diaphragm wall construction

A technology of anti-seepage wall and membrane system, which is applied to artificial islands, sheet pile walls, water conservancy projects, etc., and can solve problems such as complex geological conditions and difficulties in laying down HDPE membranes

Pending Publication Date: 2021-05-14
ZHONGKE DINGSHI ENVIRONMENTAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, due to the complex geological conditions of the project location, it is difficult to lay down HDPE membranes in the mud environment of ultra-deep trenches (30-60m)

Method used

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  • Film unloading system and method for flexible vertical diaphragm wall construction
  • Film unloading system and method for flexible vertical diaphragm wall construction
  • Film unloading system and method for flexible vertical diaphragm wall construction

Examples

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Embodiment Construction

[0033] Such as Figure 1-Figure 3 As shown, the present invention provides a kind of lower membrane system for the construction of flexible vertical cutoff wall, which is used to vertically place HDPE membrane 1 in underground cavity 2, which includes:

[0034] The bottom fixing device is fixedly connected with the bottom end of the HDPE film 1, and is used to make the HDPE film 1 hang down naturally under the action of gravity; wherein, the bottom fixing device includes an angle steel 3, and one edge of the angle steel 3 is vertically arranged and connected to the HDPE film One side of the bottom end of HDPE film 1 is pasted, and the other side of the bottom end of HDPE film 1 is pasted with flat steel bead 4. Tightly connected so as to be fixedly connected with the bottom end of the HDPE film 1; the other side of the angle steel 3 extends upwards obliquely, thereby forming an acute angle at the bottom end of the angle steel 3; Several vertical holes 31;

[0035] Film reel ...

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Abstract

The invention provides a film unloading system and method for flexible vertical diaphragm wall construction. The film unloading method comprises the following steps that a film mounting frame is hoisted by using a crane, and the bottom end of the film mounting frame is located at a ground entrance position of an empty groove; the exposed end of a HDPE film wound on a film winding drum is fixed through a bottom fixing device; vertical holes in the bottom fixing device are mutually connected with spikes on the film mounting frame; the crane lowers the film mounting frame into the empty groove and drives the bottom fixing device to be lowered into the empty groove, the film winding drum unrolls, and the HDPE film is lowered into the empty groove along with the bottom fixing device; the film mounting frame is lifted out of the empty groove by the crane; and the top end of the HDPE film is fixed to the inlet position of the bottom face of the empty groove through a top fixing device. The film unloading efficiency can be improved, and the construction speed is accelerated.

Description

technical field [0001] The invention relates to the technical field of anti-seepage of polluted sites, in particular to a membrane system and method for construction of flexible vertical anti-seepage walls. Background technique [0002] As people pay more and more attention to environmental protection, and due to the development of society and economy, the pollution emergency accidents involved frequently occur. It is urgent to block and prevent pollution sources to avoid material and economic losses caused by further expansion of pollution. After isolation control, technologies such as in-situ remediation can be used to treat polluted soil and water bodies. [0003] Flexible vertical anti-seepage technology mainly uses underground anti-seepage wall technology to block and store pollutants or change the flow direction of groundwater to achieve the purpose of controlling the horizontal migration of pollution. With HDPE membrane as the main anti-seepage material, the bottom i...

Claims

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Application Information

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IPC IPC(8): E02D19/18E02D5/46E02D31/06E02D29/16
CPCE02D5/46E02D19/18E02D29/16E02D31/06
Inventor 张景鑫董洋李大伟魏玉虎张文陈恺李忠博杨勇
Owner ZHONGKE DINGSHI ENVIRONMENTAL ENG CO LTD
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