A Total Field Correction Electrical Exploration Method for Leakage Detection in Landfill Sites

Abstract

A total field corrected electrical prospecting method for leak detection in landfills. This method adopts the arrangement of power supply electrodes A1, B1 and an infinite measurement electrode P outside the landfill and the measurement electrode M inside, by measuring the total electric field between the infinite measurement electrode P and the internal measurement electrode M of the landfill ; Arrange the power supply electrodes A2 and B2 inside the landfill, and measure the total electric field on the infinite measurement electrode P and the internal measurement electrode M of the landfill again; calculate the total field leakage parameters of all measuring points with corresponding algorithms, and according The rules for judging the leakage point are analyzed to determine whether there is leakage in the landfill, and if there is leakage, obtain the coordinate position of the leakage point. The method can improve the high-precision and rapid judgment of whether there is leakage and the location of the leakage in the landfill. The method has the advantages of low cost, high efficiency and high precision.

Description

technical field [0001] The invention relates to a total field correction electrical prospecting method used for leak detection in a garbage landfill site, belonging to the field of prospecting geophysics. This method can improve the accuracy of leakage judgment in landfills, and reduce the economic cost and time cost of exploration. Background technique [0002] With the development of society, the pollutants produced by humans have gradually increased, and a large number of landfills have been formed. Almost all landfills have different degrees of leachate leakage. There are four main sources of leachate: first, precipitation, which is the main source of leachate; second, surface runoff, which is mainly the runoff on the uphill direction of the site surface; second, groundwater; and finally, water content of pollutants, which not only includes The pollutant itself contains water, and also includes the organic components in the pollutant that are decomposed in the landfill ...

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Problems solved by technology

[0006] At present, the main geophysical methods used to solve the leakage problem of landfills include high-density resistivity method, geological radar method, transient electromagnetic method, and geothermal method. , with a wide range of applications, but relatively speaking, the exploration efficiency of high-density resistivity needs to be improved, the cost needs to be reduced, and its low-cost, high-efficiency monitoring function needs to be realized

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