| 垂向地电阻率观测装置系数的计算——以江宁地震台为例 |
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| 引用本文： | 樊晓春,李伟,孙君嵩,丁烨,吴帆,袁慎杰.垂向地电阻率观测装置系数的计算——以江宁地震台为例[J].震灾防御技术,2020,15(3):651-657. |
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| 作者姓名： | 樊晓春 李伟 孙君嵩 丁烨 吴帆 袁慎杰 |
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| 作者单位： | 1.南京市地震监测预警中心, 南京 210008 |
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| 基金项目： | 地震科技星火计划（XH19015YSX）；国家自然科学基金（A413740808） |
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| 摘 要： | 井下地电阻率观测装置系数与电流的空间分布及电极位置有关，应针对不同的观测装置进行计算。本文以江苏省江宁地震台垂向观测为例，利用传统垂直观测装置系数方法、全空间及不完全全空间方式计算装置系数，比较不同装置系数对垂向观测的影响。研究结果表明，采用不完全全空间并考虑井距的装置系数计算方法适合江宁地震台垂向观测。
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| 关 键 词： | 地电阻率 垂向观测 装置系数 井距 |
| 收稿时间： | 2019/9/16 0:00:00 |
Calculation of Configuration Coefficient in the Vertical Geo-resistivity Observation——Taking the Jiangning Seismic Station as an Example |
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| Fan Xiaochun,Li Wei,Sun Junsong,Ding Ye,Wu Fan,Yuan Shenjie.Calculation of Configuration Coefficient in the Vertical Geo-resistivity Observation——Taking the Jiangning Seismic Station as an Example[J].Technology for Earthquake Disaster Prevention,2020,15(3):651-657. |
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| Authors: | Fan Xiaochun Li Wei Sun Junsong Ding Ye Wu Fan Yuan Shenjie |
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| Institution: | 1.Nanjing Earthquake Monitoring and Early Warning Center, Nanjing 210019, China2.Nanjing Seismic Station, Nanjing 210014, China3.Earthquake Administration of Jiangsu Province, Nanjing 210014, China4.Seismic Station of Jiangning, Nanjing 210014, China |
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| Abstract: | Since the configuration coefficient in the deep-well geo-electrical resistivity observation is associated with distribution of electric current and the positions of electrodes in the four-electrode geo-electrical observation device. In this paper, taking the Jiangning seismic station as an example, the configuration coefficient of vertical geo-resistivity observation in Jiangning seismic station is calculated by half-space model, full-space model and non-full-space model method, and the influence of different configuration coefficients on vertical observation are compared. Results show that the calculation for the configuration coefficient using non-full-space model method and considering the horizontal distance of boreholes is in accordance with the vertical observation at Jiangning Station. |
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| Keywords: | Geo-electrical resistivity Vertical observation Configuration coefficient Well spacing |
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