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A new parametric approach for grounding analysis in multilayered soils with finite volumes

In this paper, a parametric approach for the analysis of grounding systems located in multilayer soils with closed volumes is developed. The parametric approach is presented on the bases of a simplified parametric formula used for the analysis of grounding systems located in multilayer soils with semi-finite volumes. Thus, parametric expression of earth resistance and earth potential in different regions of the earth surface has been obtained. Numerical validation is demonstrated by results comparison with those obtained by the BEM formulation. The results clearly show that such new approach has a significant gain on the CPU time analysis and opening on grounding optimisation with multilayer soils.