Geomembrane anti-seepage layer protection structure of constructed wetland

Abstract

The invention relates to a geomembrane anti-seepage layer protection structure of a constructed wetland. The geomembrane anti-seepage layer protection structure comprises an anti-settling structure unit disposed at the bottom of the constructed wetland and a geomembrane protection structural unit disposed on the inner side of the bottom of the wall of the constructed wetland, the anti-settling structure unit comprises a first wire mesh layer, a spherical stone expansion layer and a second wire mesh layer laid in sequence from bottom to top, the geomembrane protection structural unit comprisesa bottom plate mechanism, a top plate mechanism, a support column mechanism and a composite geomembrane, and the composite geomembrane and the support column mechanisms are sealed by a sealing rubberring nested on the support column mechanism. Through construction of an anti-anti-settling structure e and an anti-seepage layer protection structure at the bottom of the constructed wetland, when settlement occurs at the bottom of the constructed wetland, the problems of wetland structural damage and bottom leakage caused by soil layer settlement and geomembrane tensile cracking can be effectively prevented.

Description

technical field [0001] The invention relates to the field of ecological environment, in particular to a geomembrane anti-seepage layer protection structure for artificial wetlands, which is especially suitable for use in areas with relatively loose soil. Background technique [0002] The artificial wetland sewage treatment system is a near-natural sewage treatment system that emerged in the 1970s and 1980s. The system can effectively treat common types of sewage, and can be used for surface runoff rainwater, river water and landfill leachate The treatment of special sewage has the characteristics of low investment, stable treatment effect, natural non-toxic and harmless, convenient operation and maintenance, climate adjustment, and enhanced surrounding landscape effects. [0003] Due to the late start of constructed wetland technology in my country, many problems need to be studied and resolved, such as anti-seepage technology in the design of constructed wetlands, clogging ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a kind of geomembrane anti-seepage layer protective structure of constructed wetland, through The anti-settlement structure and anti-seepage protection structure are constructed at the bottom of the constructed wetland, and a part of the redundant geomembrane is reserved in the cavity of the protective structure for release after settlement, so that the geomembrane can be effectively prevented from stretching when subsidence occurs at the bottom of the wetland Wetland structural damage and bottom seepage caused by cracking and soil settlement

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