地电阻率正常变化与电剖面的关系

A PRELIMINARY STUDY ON THE RELATION BETWEEN NORMAL TEMPORAL VARIATION OF EARTH RESISTIVITY AND THE GEOELECTRICAL PROFILE AT THE STATION SITE

摘要: 本文以变化电性剖面模式阐明地电阻率正常变化的复杂行径及其以可能原因为基础, 通过计算得到了地电阻率正常相对似年变幅与台址电性剖面诸参数间的定性、定量关系.从而阐明台址电性参数条件对地电阻率正常变化的影响和控制作用.通过实验证实上述结论的正确性, 指出获取平稳正常变化资料的可能性和具体途径.

Abstract: In this paper, the very complex natur of the normal variation of earth resistivity and its possible causes are discussed on the basis of a variable geoelectrical resistivity profile model for the station site.Numerical computations give a qualitative and quantitative relation between the normal annual variation of earth resistivity and the parameters of the geoelectrical profile at the station site. Such a relation indicates the influences and controlling effect of the parameters of the geoelectrical profile on earth resistivity.By comparison with the results of actual observations at some earth resistivity station sites, the above conclusions have been verified. They show the possibility of obtaining steady normal variations of earth resistivity and the methods concerned.

[1] 金安忠, 地电阻率正常变化的初步研究, 地球物理学报, 24, 1, 1981.

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