Total field correction electrical prospecting method for leakage detection of refuse landfill

Abstract

The invention discloses a total field correction electrical prospecting method for leakage detection of a refuse landfill. According to the method, power supply electrodes A1 and B1 and an infinite measuring electrode P are arranged outside the refuse landfill, a measuring electrode M is arranged inside the refuse landfill, and the total electric field between the infinite measuring electrode P and the measuring electrode M inside the refuse landfill is measured; then power supply electrodes A2 and B2 are arranged in the landfill, and the total electric field on the infinite distance measuring electrode P and the total electric field on the measuring electrode M in the landfill are measured again; and a total field leakage judgment parameter of all the measuring points can be calculated by using a corresponding algorithm, and analysis is carried out according to a leakage point judgment rule, and it is deterined whether leakage exists in the landfill or not, and if leakage exists, the coordinate position of the leakage point can be acquired. According to the method, high-precision and rapid judgment on whether leakage exists in the landfill and the leakage position can be improved. 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 ...

AI Technical Summary

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

Images