| 垂向地电阻率观测装置系数的计算——以江宁地震台为例 |
| |
| 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。 |
|
| 关 键 词：地电阻率 垂向观测 装置系数 井距 |
| DOI：10.11899/zzfy20200320 |
| 基金项目：地震科技星火计划（XH19015YSX）；国家自然科学基金（A413740808） |
| 收稿日期：2019-09-16 |
| 作者简介：樊晓春,男,生于1984年。硕士研究生,工程师。主要从事台网管理及地电阻率应用研究工作。E-mail:fanxiaochungis@163.com |
| 通讯作者：李伟,男,生于1969年。高级工程师。主要从事地震监测预报、地震观测系统维护方面的研究工作。E-mail:553813216@qq.com |
|
| Calculation of Configuration Coefficient in the Vertical Geo-resistivity Observation——Taking the Jiangning Seismic Station as an Example |
| 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. |
| Keywords： Geo-electrical resistivity Vertical observation Configuration coefficient Well spacing |
| 关闭 |
京ICP备06028819-2号