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地震 ›› 2007, Vol. 27 ›› Issue (增刊): 51-58.

• 地电阻率研究 • 上一篇    下一篇

地电观测精度影响因素的数值分析基于ANSYS平台

王书明1, 杜学彬2, 刘玉兰1, 吴岩1   

  1. 1.中国地质大学地球物理与空间信息学院, 湖北 武汉 430074;
    2.中国地震局兰州地震研究所, 甘肃 兰州 730000
  • 收稿日期:2007-01-18 修回日期:2007-10-12 出版日期:2007-06-30 发布日期:2021-10-29
  • 作者简介:王书明(1966), 男, 陕西铜川人, 副教授, 2002年获博士学位, 主要从事地球电磁法理论与应用等研究。
  • 基金资助:
    国家科技基础条件平台重点项目(2004DEA71000)

Numerical analysis on influence factors of geoelectric observation precision based on ANSYS platform

WANG Shu-ming1, DU Xue-bin2, LIU Yu-lan1, WU Yan1   

  1. 1. Geophysics and Geometrics Institute, China University of Geosciences, Wuhan 430074;
    2. Lanzhou Institute of Seismology, CEA, Lanzhou 730000, China
  • Received:2007-01-18 Revised:2007-10-12 Online:2007-06-30 Published:2021-10-29

摘要: 以ANSYS作为基础平台, 数值分析了水平地形、 倾斜地形以及三角地形三种地电观测条件下, 由于降雨在地表形成2 m深低阻层对观测数据的影响, 并且分析了位于河道旁的地电观测站与河道不同距离情况下由于降雨引起的河水涨落对观测数据的影响。 这些影响因素在以往的实际观测中很少考虑, 该文的分析结果对实际地电观测数据的校正以及地震异常判断具有参考价值。

关键词: 地电观测, 直流电法, 数值模拟, ANSYS平台

Abstract: Using ANSYS software as basic platform, and based on the condition of level, slope and triangle terrain, this paper numerically analyzed the influences on observation data caused by 2 meters thickness low-resistivity layer formed by raining. Moreover, according to the condition of different distance, this research analyzes the influence of ebb and flow of river water on observation data obtained from the geoelectric observation station at the side of a river. Those factors are seldom taken into account in the past practical observation. The results gained by this paper have reference to the correction of practical geoelectric observation data and judgment on earthquake anomaly.

Key words: Geoelectric observation, Direct current method, Numerical simulation, ANSYS

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