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地震 ›› 1998, Vol. 18 ›› Issue (S1): 33-38.

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承载岩石地电阻率各向异性变化的实验研究与现场观测结果①

毛桐恩1), 陈大元2), 刘新美1), 余素荣3), 宋大捷2)   

  1. 1) 中国北京 100081 中国地震局地球物理研究所;
    2) 中国北京 100871 北京大学地球物理系;
    3) 中国北京 100036 中国地震局分析预报中心
  • 收稿日期:1998-06-03 修回日期:1998-06-28 出版日期:1998-10-20 发布日期:2022-09-30
  • 作者简介:毛桐恩,男,1942年10月出生,研究员,主要从事岩石圈结构及深部孕震环境因子、大陆动力学、地震电磁前兆机理等研究工作。
  • 基金资助:
    ①地震科学联合基金资助课题; 中国地震局地球物理研究所论著(98A02049)

EXPERIMENTAL RESEARCH ON CHANGE OF GEORESISTIVITY ANISOTROPY OF PRESSED ROCKS AND ON THE SPOT OBSERVATION

Mao Tong'en1), Chen Dayuan2), Liu Xinmei1), Yu Surong3), Song Dajie2)   

  1. 1) Institute of Geophysics, CSB, Beiing 100081,China;
    2) Department of Geophysics,Peking University, Beijing 100871, China;
    3) Center for Analysis and Prediction, CSB, Beijing 100036, China
  • Received:1998-06-03 Revised:1998-06-28 Online:1998-10-20 Published:2022-09-30

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摘要： 对承载岩石地电阻率各向异性变化的实验研究结果与大震孕育过程中现场观测到的地电阻率各向异性变化特征进行了对比分析讨论。结果表明,孕震过程中地震现场地电阻率各向异性变化特征与承载岩石地电阻率各向异性变化的实验结果相近或相符,也与岩石破裂过程中裂隙发展的力学实验结果相一致。

关键词: 地电阻率, 承载岩石, 各向异性, 现场观测, 实验研究

Abstract: This paper conducts a comparative analysis and discussion on the experimental result regararding the georesistivity anisotropic changes in the pressed rocks, and on variational characteristics of georesistivity anisotropy in strong earthquake preparation. The results show that the variational characteristics of georesistivity anisotropy during seismogenic process are as same as those of the pressed rocks, and they are also as same as the fracture development during rock rupture in mechanical experiment.

Key words: Georesistivity, Pressed rock, Anisotropy, Experiment study, On the spot observation