Prefabricated vertical and horizontal drainage guide system for garbage landfill and construction method of prefabricated vertical and horizontal drainage guide system

Abstract

The invention discloses a prefabricated vertical and horizontal drainage guide system for a garbage landfill and a construction method of the prefabricated vertical and horizontal drainage guide system. The prefabricated vertical and horizontal drainage system for the garbage landfill comprises a liner structure, a reservoir body drainage guide structure and a vertical and horizontal drainage guide system. The liner structure comprises a compacted clay bottom layer, a geomembrane, a compacted clay surface layer and a UHPC sprayed impervious layer. The reservoir body drainage guide structure comprises a UHPC collecting well, a steel grating manhole cover, a circular pipe opening, a reservoir body geotechnical composite drainage network, a reservoir body cleaning gravel layer and a clay sealing layer. The vertical and horizontal drainage guide system comprises a UHPC core drainage pipe, UHPC longitudinal drainage pipes, UHPC transverse drainage pipes, a submersible sewage pump, a liftingrope and a drainage hose. By means of prefabricated construction, the system has short construction period and reliable and durable structure, can control the main level of leachate for a long time,and has the advantages of good drainage effect, long life cycle and low maintenance cost.

Description

technical field [0001] The invention relates to the technical field of waste landfill guiding and drainage, in particular to an assembled vertical and horizontal guiding system for garbage landfills and a construction method thereof. Background technique [0002] Landfill is an important method to deal with municipal solid waste. Landfills that lack strict anti-seepage and drainage measures will be a huge source of pollution. The leachate produced will pollute the groundwater, and the landfill gas will pollute the air. At present, most landfills lack effective drainage measures, and the accumulation of a large amount of leachate and landfill gas in the landfill will also cause problems such as unstable landslides, landfill gas explosions, and fires in the garbage dump; large-scale mechanical operations on the upper part The settlement of garbage dumps can easily lead to distortion, deformation or even damage of ordinary drainage pipes, and it is difficult to repair and repl...

AI Technical Summary

Problems solved by technology

Landfills that lack strict anti-seepage and drainage measures will be a huge source of pollution. The leachate produced will pollute the groundwater, and the landfill gas will pollute the air.

At present, most landfills lack effective drainage measures, and the accumulation of a large amount of leachate and landfill gas in the landfill will also cause problems such as unstable landslides, landfill gas explosions, and fires in the garbage dump; large-scale mechanical operations on the upper part The settlement of garbage dumps can easily lead to distortion, deformation or even damage of ordinary drainage pipes, and it is difficult to repair and replace; the later construction of drainage systems often uses drilling construction, which is cumbersome and requires a large amount of work. The drainage effect is not good, and it is easy to cause filling Buried gas leakage pollutes the environment

[0003] In order to solve the problem of leachate accumulation and leakage and reduce the risk of landfill gas leakage, the present invention provides an assembled vertical and horizontal drainage system for landfills and its construction method, which can control the main water level of leachate in landfills for a long time , Improve the collection rate of landfill gas and the stability of the slope of the garbage dump

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