Leakage detection method and device for vertical plastic-laying anti-leakage curtain

Abstract

The invention discloses a leakage detection method and device for a vertical plastic-laying anti-leakage curtain. The leakage detection device comprises the vertical plastic-laying anti-leakage curtain, an accumulator, a plurality of electrodes, an electrode conversion box and direct current electrical prospecting apparatus. Two measuring lines are laid on the two sides of the anti-leakage curtaincorrespondingly; the electrode conversion box and the direct current electrical prospecting apparatus are arranged on the anti-leakage curtain and connected with the electrodes; and the multiple electrodes are embedded on the measuring lines sequentially with equal distances. The direct current electrical prospecting apparatus is controlled to emit currents to the underground according to the setsequence, so that potential differences are formed between the electrodes, accordingly, the current intensity and the potential differences are measured; and forward simulation is conducted accordingto the measuring results, and thus the resistivity profiles of the laid measuring lines can be obtained. The electrodes only need to be placed on the two sides of the anti-leakage curtain, therefore,construction is easy and convenient in actual engineering, detection can be conducted in the laying process of a vertical anti-leakage film, and thus hidden dangers can be treated more timely.

Description

technical field [0001] The invention relates to a method and a device for detecting leakage of a vertical plastic-laid anti-seepage curtain. Background technique [0002] In recent years, with the rapid development of my country's national economy and the construction of new urbanization, the development of water resources, the construction of water conservancy and transportation projects, the planning of new cities, the renovation of old cities and other projects have a huge volume. Seepage walls or other underground continuous walls are subjected to anti-seepage treatment. [0003] In the 1980s, a new type of anti-seepage technology - vertical plastic anti-seepage technology began to be studied and gradually developed. This technology was first applied to foundation treatment engineering in my country in 1992 and achieved good results. applied in various engineering fields. Among various forms of anti-seepage walls, vertical plastic anti-seepage technology has significant ...

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Problems solved by technology

[0005] In order to solve the above problems, the present invention proposes a method and device for detecting leakage of vertical plastic-laid anti-seepage curtains. The present invention can solve commonly used detection methods such as geological radar method, drilling ultrasonic method, high-density resistivity method, The problem that elastic wave engineering CT method cannot effectively detect the continuity of anti-seepage curtain, that is, the anti-seepage performance

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