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3-D Soil Stratification Methodology for Geoelectrical Prospection

2012; Institute of Electrical and Electronics Engineers; Volume: 27; Issue: 3 Linguagem: Inglês

10.1109/tpwrd.2012.2193602

1937-4208

Wesley P. Calixto, A. Paulo Coimbra, Bernardo Pinheiro de Alvarenga, José Paulo Molin, Alexandre Cardoso, Luciano Martins Neto,

Electromagnetic Scattering and Analysis

The purpose of this paper is to present an innovative methodology for 3-D soil stratification based on geoelectrical prospection. This methodology is useful in optimal substation grounding system designs by providing an accurate 3-D soil resistivity model. In the present methodology, the area being studied is subdivided into squared subareas and a recently developed geoelectrical prospection method based on the Wenner's method and on a genetic algorithm is applied to each subarea's edge. For each subarea, the soil stratification result consists of the number of layers and of its electrical resistivities and thicknesses. A global 3-D soil stratification solution is then obtained from these data. Results obtained with this new method are presented and discussed.