地电阻率与水位关系的机理分析

doi:10.12196/j.issn.1000-3274.2020.04.014

地震 ›› 2020, Vol. 40 ›› Issue (4): 183-190.doi: 10.12196/j.issn.1000-3274.2020.04.014

地电阻率与水位关系的机理分析

沈红会, 叶碧文, 孙春仙, 祝涛

江苏省地震局, 南京 210014

收稿日期:2019-06-03 出版日期:2020-10-30 发布日期:2020-10-23
作者简介:沈红会(1972-), 男, 江苏武进人, 高级工程师, 主要从事地震预报研究。
基金资助:
江苏省地震局局长基金(17410)

Analysis on the Relationship between Changes of Ground Resistivity and Water Level

SHEN Hong-hui, YE Bi-wen, SUN Chun-xian, ZHU Tao

Jiangsu Earthquake Administration, Nanjing 210014, China

Received:2019-06-03 Online:2020-10-30 Published:2020-10-23

摘要/Abstract

摘要： 从地电阻率的观测理论出发, 指出地电阻率场地的电性结构、岩石的饱和度和孔隙度决定了地电阻率和水位的关系。在长期的观测资料基础上, 通过实例系统地分析了地电阻率和水位的关系, 给出了不同层位的水位变化和不同方式的水位变化对地电阻率观测结果的影响, 认为非构造水位变化与地电阻率的关系主要取决于表层土壤或岩石的水饱和度, 构造水位变化与地电阻率变化存在明确的相关关系, 从而进一步探讨了与前兆异常有关的水位和地电阻率变化。

关键词: 地电阻率, 构造水位, 电性结构, 饱和度, 孔隙度

Abstract: Based on the observation theory of ground resistivity, it is pointed out that the relationship between the earth resistivity and the water level is determined by the electrical structure of ground resistivity field, rock saturation, as well as the porosity. By the long-term observation data, the relationship between ground resistivity and water level is systematically analyzed. The influence of water changes in different horizons on ground resistivity has been given. It is considered that the relationship between atectonic water level changes and ground resistivity mainly depends on the water saturation of surface soil or rock. There is a clear correlation between the change of the water level, which related to the tectonic movements, and the change of the ground resistivity. Further more, the changes of water level and ground resistivity related to the precursor anomaly has been discussed in this paper.

Key words: Ground resistivity, Change of water level related to the tectonic movements, Electrical structure, Saturation, Porosity

中图分类号:

P319.2

沈红会, 叶碧文, 孙春仙, 祝涛. 地电阻率与水位关系的机理分析[J]. 地震, 2020, 40(4): 183-190.

SHEN Hong-hui, YE Bi-wen, SUN Chun-xian, ZHU Tao. Analysis on the Relationship between Changes of Ground Resistivity and Water Level[J]. EARTHQUAKE, 2020, 40(4): 183-190.

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地电阻率与水位关系的机理分析

Analysis on the Relationship between Changes of Ground Resistivity and Water Level

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