Research The Key Technology Of3d Electrical Monitoring About Landfill Leakage

Landfill leakage problem occurs frequently in our country. Landfill leakagecauses groundwater pollution accident and it even has great harm to people’s life. Soleakage monitoring work becomes the urgent matter. The traditional leakage electricalmonitoring methods are inefficient and they already can’t satisfy the monitoring workrequirements. As a new landfill leakage monitoring method,3d electrical monitoringtechnology has more and more attention. But from the present research situation,which is limited to the analysis of the monitoring results and the spread of pollutionrange of monitoring, have not yet reached the quantitative analysis of the stage and donot form a complete set of monitoring system.In the view of leakage point position and number, leakage pollution diffusionrange on the dynamic monitoring,the paper do research in theoretical andexperimental two aspects.On the one hand perfect3d electrical monitoring systemwhose core device is the electrode system. Establish the geoelectric structure by thetheoretical study, find out the main factors which affect the monitoring result, richtheoretical basis, and provides the basis for the quantitative analysis of the technicalparameters;On the other hand, research and develop new monitoring method, analyzesthe leak positioning ability by the new monitoring method, seek more convenient andeconomic monitoring technology.This paper according to3d electrical monitoring device and its different positionlayout, divided the3d electrical monitoring technology into three kinds:3D electricalmonitoring method under the film,3d electrical monitoring method on the top andmesh cross line monitoring method. Analyzes monitoring technology principle of thethree ways, Analyzes the three monitoring technical principle,the monitoring effect ofthe leakage points,the main affect factors of the monitoring results,and doquantitative analysis to the design of technical parameters for3d electrical monitoringway under the film., to provide a theoretical basis for the practical application. The research shows that:3d electrical monitoring technology under the film can accuratelyfind out the leakage points, laying the foundation for practical application, meshcross line monitoring technology make a good monitoring effect whose cost is lowand the arrangement is simple and convenient, but the effect of the top of the3delectrical monitoring technology is poor; their monitoring potential is inflenced by thesupply current size, detection electrode distance, power supply electrode layoutposition and the size and shape of leakage points.