An Estimate of the Uncertainty in the Grounding Resistance of Electrodes Buried in Two-Layered Soils with Non-Flat SurfaceReportar como inadecuado


An Estimate of the Uncertainty in the Grounding Resistance of Electrodes Buried in Two-Layered Soils with Non-Flat Surface


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Departamento de Ingeniería Eléctrica Electrónica, Automática y Física Aplicada, Escuela Técnica Superior de Ingeniería y Diseño Industrial, Universidad Politécnica de Madrid, 28012 Madrid, Spain





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Academic Editor: Gabriele Grandi

Abstract The influence of the irregular surface of a multi-layered soil on the estimation of the ground resistance of a complex electrode is studied. The electrode is placed in the first layer while the irregular surface is treated as the interface of an inhomogeneous volume filled with air and embedded in the first layer. A wide sample of irregular soils is generated and the variation of the electrode grounding resistance, as a function of a parameter that measures the surface unevenness, is evaluated. A stochastic model of the grounding resistance is proposed for which the variation of the electrode grounding resistance with its horizontal position relative to the surface is studied. The model features allow us to explain the variability found, as we are able to estimate the part of the uncertainty about the electrode grounding resistance measurements due to the non-planar soil surface. View Full-Text

Keywords: inhomogeneous soils; multilayer soil model; grounding resistance; non-flat soil surface; stochastic model of grounding resistance inhomogeneous soils; multilayer soil model; grounding resistance; non-flat soil surface; stochastic model of grounding resistance





Autor: Eduardo Faleiro * , Gabriel Asensio and Jorge Moreno

Fuente: http://mdpi.com/



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