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地震 ›› 2007, Vol. 27 ›› Issue (增刊): 19-27.

• 地电阻率研究 • 上一篇    下一篇

地电阻率台址条件研究

杜学彬1, 钱家栋2, 陈军营1, 康好林1, 马占虎1, 谭大诚1, 叶青1, 李宁1   

  1. 1.中国地震局兰州地震研究所, 甘肃 兰州 730000;
    2.中国地震局地震预测研究所, 北京 100036
  • 收稿日期:2006-09-18 修回日期:2006-10-09 出版日期:2007-06-30 发布日期:2021-10-29
  • 作者简介:杜学彬(1956-), 男, 新疆沙湾人, 研究员, 主要从事地震电磁现象等研究。
  • 基金资助:
    国家科技基础条件平台重点项目(2004DEA71000)

On condidtion of earth-resistivity station site

DU Xue-bin1, QIAN Jia-dong2, CHEN Jun-ying1, KANG Hao-lin1, MA Zhan-hu1, TAN Da-cheng1, YE Qing1, LI Ning1   

  1. 1. Lanzhou Institute of Seismology,CEA,Lanzhou 730000;
    2. Institute of Earthquake Science,CEA,Beijing 100036, China
  • Received:2006-09-18 Revised:2006-10-09 Online:2007-06-30 Published:2021-10-29

摘要: 对两相饱水介质中视电阻率变化Δρss和电阻率-应变放大系数k与介质骨架电阻率ρ0、 饱水裂隙电阻率ρf、 裂隙率v的关系进行了理论分析。 结果显示, Δρss、 k与ρ0、 ρf、 v的关系其机理清晰, 地下水的作用十分显著, 根据这个结果讨论了地电阻率台址构造条件、 岩性条件的选择标准。 分析、 研究了国内外关于地电阻率台址电性结构的研究成果, 讨论了台址电性条件的选择标准。

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 ρf and crack ratio v in the two-phase saturation water medium are theoretically analyzed. The result shows that the mechanism of Δρss and k change along with ρ0, ρf and v variation is clear, and that the underground water plays a prominent role in the changes of both Δρss 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

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