Geomembrane leakage simulation tester considering dynamic water pressure, and testing method thereof

Abstract

The invention provides a geomembrane leakage simulation tester considering dynamic water pressure, and a testing method thereof. The tester comprises a dynamic water pressure system, a leakage test system and a monitoring analysis system, wherein the dynamic water pressure system simulates dynamic change of a waterhead covering the geomembrane through a servo booster pump and a pressure water tank, the leakage test system simulates a leakage process through a defective geomembrane, and the monitoring analysis system realizes simulation of the waterhead and dynamic testing and analysis of leakage flow by using an electronic pressure gauge and an electronic flowmeter. The invention provides a physical model tester for geomembrane defect leakage, which overcomes the defect of falsity due to too many hypotheses in theoretical calculation and numerical simulation and can perform leakage simulation and analysis under multiple working conditions based on actual characteristics of leakage-proof engineering.

Description

technical field [0001] The invention relates to the technical field of civil engineering tests, in particular to a leakage simulation test device and test method for geomembrane defects under the action of a dynamic head, and is mainly used for carrying out leakage simulation and parameter calculation of geomembrane defects under a dynamic head environment. Background technique [0002] Geomembrane is a kind of flexible synthetic material with good deformation performance and anti-seepage performance. It is widely used in anti-seepage projects such as dikes, cofferdams, dams, reservoirs and landfills. However, in the actual anti-seepage project, due to the influence of manufacturing process and construction conditions, the geomembrane will inevitably be damaged to varying degrees and form defects of different shapes. Defects of geomembrane will destroy its overall anti-seepage performance. Concentrated leakage will easily form at the defect and cause various consequences. Fo...

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Problems solved by technology

Theoretical calculation and numerical simulation, it is difficult to fully consider the comprehensive influence of the above three factors

[0004] To sum up, the physical model test is the only feasible means to carry out the research on leakage of geomembrane defects at this stage, but there is no mature simulation test device for leakage of geomembrane defects available

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