Geomembrane wrinkle test model box device

Abstract

The invention relates to the technical field of geotechnical engineering, in particular to a geomembrane wrinkle test model box device, which comprises a model box. The model box comprises a bottom plate, a grouting hole, a slurry through hole, a slurry permeating plate, a geomembrane pressing strip and a model box body; the bottom plate is of a square structure, and slurry permeating grooves areevenly distributed in the upper surface of the bottom plate; the grouting hole is formed in the middle of the side wall of the bottom plate and penetrates through the two side walls of the bottom plate, one end of the grouting hole is connected with the output end of an air compressor, and a plug is arranged at the other end of the grouting hole; the slurry through hole is formed in the center ofthe upper surface of the bottom plate, and the slurry through hole is communicated with the grouting hole; the slurry permeating plate is arranged above the bottom plate, and water permeating holes are evenly distributed in the slurry permeating plate. Thus, the quantification problem of geomembrane wrinkles in an indoor small model test is solved, the temperature and pressure conditions requiredby the geomembrane wrinkle test can be easily adjusted, and the device is simple and convenient to operate and low in manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a geomembrane fold test model box device. Background technique [0002] Geosynthetics represented by geomembranes are often used as anti-seepage lining structures in water conservancy projects, mining projects (tailing ponds) and environmental engineering (landfills). The temperature influence of geomembranes in engineering applications is increasingly causing researchers' attention. [0003] Materials such as geomembranes that have been laid or are being laid may be exposed to direct sunlight for a long time due to various reasons. Changes in temperature and sunlight intensity cause periodic changes in the surface temperature of the geomembrane; the increase in temperature makes the geomembrane The membrane undergoes obvious expansion and deformation and forms obvious folds in a certain area; after the formation of folds, the contact between the geomembrane and...

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Problems solved by technology

[0003] Materials such as geomembranes that have been laid or are being laid may be exposed to direct sunlight for a long time due to various reasons. Changes in temperature and sunlight intensity cause periodic changes in the surface temperature of the geomembrane; the increase in temperature makes the geomembrane The membrane undergoes obvious expansion and deformation and forms obvious folds in a certain area; after the formation of folds, the contact between the geomembrane and the adjacent material will deteriorate, which may greatly weaken its anti-seepage barrier ability. Therefore, it is very necessary to study the geomembrane in depth Mechanism of wrinkle formation under combined action of temperature rise and normal pressure

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