Study On Numerical Simulation And Inversion Of Electrical Resistivity Method For Heavy Metal Contaminated Sites

In this paper, the heavy metal contaminated sites resistivity method detectiontechnology is the main study object, heavy metal contaminated sites resistivitymethod detection model is built, and through solving the steady current field, analysisof resistivity method to detect the effect of different pollution levels of heavy metalcontaminated sites, pollution depth, and different geological conditions. Combinedwith groundwater transport model, solute transport model and steady current field toestablish the model of the real-time monitoring of contaminated sites, it provide auseful reference for designing plan and interpretation of results of resistivity methodfor monitoring of contaminated sites, though the numerical method to find outresistivity detection results at different times. On this basis, two kinds of commonresistivity method anti algorithm-damped least squares method and the smoothconstrained least squares inversion of the synthetic model apparent resistivity datainversion, the results point out that inversion results are not accurate in the depthdirection, and propose an inversion algorithm based on drilling information todetermine the reference model, improve accuracy of the inversion results on the depthside.