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Landfill impermeable membrane stress relief structure using rubber airbags

A technology of rubber airbags and anti-seepage membranes, which is applied in infrastructure engineering, protection devices, buildings, etc., can solve the problems of landfill time limit, loss of fixing function, pull-up of anchorage area of ​​anti-seepage membrane, etc., and achieve reduction Reduce the risk of environmental pollution, shorten the construction period, and prevent the effect of puncture tear damage

Pending Publication Date: 2018-12-07
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there are protrusions under the anti-seepage membrane, it may cause the anti-seepage membrane to be punctured, lose the function of blocking leachate, and cause environmental pollution
In addition, the tension caused by this temperature difference may also cause the anchorage area of ​​the impermeable membrane to be pulled up and shifted, losing its fixing function and causing the impermeable membrane to fail.
Due to this problem, the laying of anti-seepage membranes in general waste landfills needs to be arranged in the lower temperature season or in the morning and evening when the temperature is relatively stable. As a result, the construction of waste landfills is limited by time and the economic cost of the project increases.

Method used

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  • Landfill impermeable membrane stress relief structure using rubber airbags
  • Landfill impermeable membrane stress relief structure using rubber airbags
  • Landfill impermeable membrane stress relief structure using rubber airbags

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Embodiment Construction

[0023] Embodiments of the present invention will be specifically described based on the drawings. Such as Figure 1~5 As shown, the landfill slope is equipped with a liner system, in which the anti-seepage membrane ensures that the leachate does not leak into the surrounding environment, and the geotextile layers arranged above and below the anti-seepage membrane play the role of protecting the anti-seepage membrane . The liner layer sets the anchorage area at the top of the slope and the upper part of the segmented slope. The anchoring area is a groove anchoring system, and the edges of the impermeable membrane and the geotextile are folded in the groove and fixed with cement concrete.

[0024] In order to alleviate the temperature stress of the anti-seepage membrane, a cylindrical rubber airbag is installed under the anti-seepage membrane at the outer platform of the anchorage groove, and the thickness of the airbag material is 2-5mm. According to the length of the slope ...

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Abstract

The invention relates to a landfill impermeable membrane stress relief structure using rubber airbags, and belongs to the technical field of environmental protection. A liner is arranged on a slope ofa refuse landfill; the liner specifically consists of an impermeable membrane in middle, and geofabrics on two sides of the impermeable membrane; anchoring areas for fixing the liner are arranged atthe top end of the slope and the upper part of each slope section; the anchoring areas comprise anchoring grooves and groove outer side platforms; the liner is overturned in the anchoring grooves; concrete anchoring blocks are cast above the liner in the anchoring grooves; volume adjusting objects are arranged between the groove outer side platforms and the liner or between the concrete anchoringblocks and the liner; and the volume adjusting objects are carbon dioxide cylindrical airbags.

Description

technical field [0001] The invention relates to a stress relaxation structure of an anti-seepage membrane of a garbage landfill site, which belongs to the technical field of environmental protection. Background technique [0002] With the development of the national economy and the improvement of the level of urbanization, the amount of municipal solid waste is increasing sharply. In the 1980s, some economically developed cities in my country began to build the first batch of garbage sanitary landfills. In recent years, many large and medium-sized cities have successively built large sanitary landfills for domestic waste. In order to prevent the leachate produced by landfilling from seeping into the ground and causing environmental pollution, anti-seepage membranes must be installed in sanitary landfills. [0003] In order to prevent ultraviolet rays, this impermeable membrane is generally black, made of polymer materials such as rubber and resin, and has a large coefficie...

Claims

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Application Information

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IPC IPC(8): E02D31/06
CPCE02D31/06
Inventor 李明飞孙海霞刘钧玉方瑞东宁宝宽
Owner SHENYANG POLYTECHNIC UNIV
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