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Anti-seepage water stopping method for refuse landfill

A landfill and water stop technology, applied in the field of seepage prevention and water stop, can solve the problems of groundwater and soil pollution, increase the amount of leachate leakage in landfill, etc., and achieve small engineering volume and good water stop Anti-seepage, obvious effect

Active Publication Date: 2018-07-24
TONGJI UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Due to the inability to pave the covering layer in time during the on-site construction, the geomembrane directly receives the solar radiation and expands and arches, and the connection between the arches forms a large-area channel, which increases the amount of leachate leakage in the landfill. risk of contamination of groundwater and soil

Method used

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  • Anti-seepage water stopping method for refuse landfill
  • Anti-seepage water stopping method for refuse landfill
  • Anti-seepage water stopping method for refuse landfill

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Embodiment

[0031] Such as figure 1 Shown, a kind of anti-seepage and water-proof method for landfill, the method comprises the steps:

[0032] (1) pave and compact the cohesive soil and geotechnical protection layer 1, and set an induced arching grouting device above the cohesive soil and geotechnical protection layer 1;

[0033] (2) laying an anti-seepage geomembrane 4 above the induced arching grouting device;

[0034] (3) After the anti-seepage geomembrane 4 receives solar radiation and heats up and expands to arch, inject grout into the arch-inducing grouting device.

[0035] Preferably, the arch-inducing grouting device includes a flat grouting pipe 2 and a grouting main pipe 3, and the flat grouting pipes 2 are arranged in multiples and distributed side by side above the geotechnical protection layer, and all the flat grouting pipes 2 All are connected to the grouting main pipe 3, and when not grouting, the flat grouting pipe 2 is flat. The diameter of the flat grouting pipe 2 i...

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Abstract

The invention relates to an anti-seepage water stopping method for a refuse landfill. The method comprises the following steps that 1, viscidity soil and a geotechnical protection layer (1) are beddedand compacted, and an induction arcing and grouting device is arranged above the viscous soil and the geotechnical protection layer; 2, anti-seepage geomembrane (4) is laid above the induction arching and grouting device; and 3, after being subjected to thermal expansion and arching by solar radiation, the anti-seepage geomembrane (4) perform grouting on the induction arching and grouting device.Compared with the prior art, the anti-seepage water stopping method has the advantages of being rapidly applied, small in work amount, low in cost and good in water stopping effect.

Description

technical field [0001] The invention relates to a method for preventing seepage and water, in particular to a method for preventing seepage and preventing water used in landfills. Background technique [0002] At present, when constructing landfills, domestic and foreign anti-seepage and water-proof technologies mainly adopt the method of laying anti-seepage geomembrane, and the anti-seepage membrane material is mainly HDPE (high-density polyethylene). Due to the inability to pave the covering layer in time during the on-site construction, the geomembrane directly receives the solar radiation and expands and arches, and the connection between the arches forms a large-area channel, which increases the amount of leachate leakage in the landfill. There is a risk of contamination of groundwater and soil. Therefore, in the construction process of geomembrane laying, an effective, convenient and economical method is needed to effectively prevent landfill leachate from leaking thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D31/02
Inventor 杨坪潘亚飞余璐黄烨迪刘耀徽李志成王沐晨
Owner TONGJI UNIV
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