地电阻率台址条件研究

Abstract

Abstract: In this paper, the relation of the apparent resistivity variation and resistivity-strain coefficient k, the medium framework resistivity ρ₀,saturation water crack resistivity ρ_f and crack ratio v in the two-phase saturation water medium are theoretically analyzed. The result shows that the mechanism of Δρ_s/ρ_s and k change along with ρ₀, ρ_f and v variation is clear, and that the underground water plays a prominent role in the changes of both Δρ_s/ρ_s and k. Based on this result, the criterion selecting the geologic structure and the lithologic condition of the earth-resistivity station site is discussed. Besides, the criterion selecting the electrical property condition of the station site is also discussed after studying the research results on the electrical property structures of earth-resistivity station site .

Key words: Apparent resistivity, Station site, Geologic structure, Lithologic characters, Electrical property, Crack, Underground water, Mechanism

CLC Number:

P315.72

DU Xue-bin, QIAN Jia-dong, CHEN Jun-ying, KANG Hao-lin, MA Zhan-hu, TAN Da-cheng, YE Qing, LI Ning. On condidtion of earth-resistivity station site[J]. EARTHQUAKE, 2007, 27(增刊): 19-27.

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On condidtion of earth-resistivity station site

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