A computer model for the interpretation of soil resistivity measurement data collected in the vicinity of grounding systems

摘要

The accuracy of the soil parameters obtained by the interpretation of soil resistivity measurement data is essential for an accurate parametric grounding analysis. Ideally, soil resistivity measurements should be made in the absence of buried metallic structures and interpreted by computer models tailored for that purpose. However, there are cases when the soil resistivity measurements have to be made in the presence of grounding systems and to be interpreted by the computer models tailored to take into account the influence of the metallic structures. This paper presents a methodology and a computer model tailored to interpret this kind of measurement data so to obtain as accurate soil models as possible. The computer model has been verified against experiments. It is shown that the accuracy of the soil structure parameters obtained by this model, is within +-4%.