計算機による比抵抗断面形成過程における立体電極配列効果の評価

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The most important recent activities in the electrical measurement of the earth structure and its interpretation techniques include the use of large continuous date, high speed computer simulation with effective visualization, and setting of underground solid electrode arrays such as cross-hole (hole-to-hole) or hole-to-surface (surface-to-hole) electrode configurations. These developments including the computerized tomography technique would provide more powerful exploration tools for detecting deep or small mineral deposits, energy and groundwater reservoirs and fracture zones, and also for monitoring hazardous waste disposal environments, groundwater contamination and various changes of the earth structure given by the natual and artificial energies in the shallow and deep underground spaces. In this paper a brief review of the solid electrode array technique is given first, which should be effective in order to extract the response (signal) due to the deep or small targets. Then, the sensitivity distributions of two different subsurface solid electrode configurations are presented to illustrate the effect of electrode element array on the characteristics of response (signal) due to the target inhomogeneities. Furthermore, helpful inversion elements in the resistivity interpretation and evaluation procedures are shown by taking the examples of the cross-hole and hole-to-surface computerized section constructions for the purpose of improving the electrical solid array system.
社団法人日本材料学会の論文
1990-04-15

計算機による比抵抗断面形成過程における立体電極配列効果の評価

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