Effect losing damage simulation system for composite seepage-proofing liner

Abstract

The invention relates to an effect-losing damage simulation system for a composite seepage-proofing liner. The system belongs to the technical field of environmental geotechnics. The simulation system is composed of a control platform, an observation device and a simulation device. Hydraulic telescopic rods evenly arranged in a simulation container of the simulation device in a matrix mode are respectively controlled by a hydraulic control valve to change in different heights, and the deforming situations under the working conditions of differential settlement deformation for the composite seepage-proofing liner can be effectively simulated, temperature and pressure of test solution affected on the composite seepage-proofing liner can be controlled and adjusted according to test working conditions, a three-dimensional camera device monitors differential settlement of the composite seepage-proofing liner in real time through a marking ball of the simulation device, test parameters is set on a control platform which acquires and processes test data, and test efficiency is greatly improved. The simulation system can effectively simulate effect-losing damage of the composite seepage-proofing liner under mode effects of different solution density, temperature, pressure and differential settlement.

Description

technical field [0001] The invention relates to a composite anti-seepage pad failure damage simulation system, which belongs to the technical field of environmental geotechnical engineering. Background technique [0002] In recent years, urban domestic waste has grown rapidly, the rate of harmless treatment is low, and environmental pollution is serious. Sanitary landfill has become the main form of waste disposal in my country as a way of low cost, relatively simple technology, and rapid disposal of waste. In order to prevent landfill leachate from polluting the soil and groundwater surrounding the landfill, a liner system is often built in the landfill. In recent years, the composite anti-seepage liner composed of HDPE geomembrane and geosynthetic clay liner (GCL: Geosnythetic Clay Liner) has attracted more and more attention. This liner has good anti-seepage ability, high shear strength and large adsorption capacity. , Convenient construction and other advantages, widel...

AI Technical Summary

Problems solved by technology

At present, the constitutive relationship for the anti-seepage failure process of the landfill composite liner under the stress-temperature-chemical coupling has not been really established, so that the landfill composite under the stress, water flow, chemistry, and temperature has not been realized. Liner anti-seepage for effective simulation and behavior prediction

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