摘要
忻州地震监测中心站(以下简称忻州站)于2021年7月完成井下地电阻率观测系统建设,采用小极距和深埋方式布设电极。本文介绍忻州站井下地电阻率观测系统的场地布设概况、施工技术与工艺以及设备安装与调试情况。通过对井下观测和地表观测数据进行对比分析,结果表明,井下观测能够有效抑制环境干扰,其观测稳定性和数据质量均优于地表观测;地下水位对井下垂直观测具有显著影响,且与地电阻率呈负相关性。
The underground electrical resistivity observation system was completed in July 2021 at the Xinzhou Seismic Monitoring Center Station,using small electrode spacing and deep installation.This paper introduces the site layout,construction technology and equipment installation and debugging of the Xinzhou underground electrical resistivity observation system.Comparing the data from underground and surface observation,the results show that underground observation can effectively suppress environmental interference,and its observation stability and data quality are better than surface observation.The groundwater level has a significant impact on vertical underground observation and is negatively correlated with electrical resistivity.
作者
尚永明
宁亚灵
殷志刚
李贵明
SHANG Yong-ming;NING Ya-ling;YING Zhi-gang;LI Gui-ming(Xinzhou Earthquake Monitoring Center Station,Shanxi Earthquake Agency,Daixian,Shanxi 034200,China;Shanxi Earthquake Agency,Taiyuan,Shanxi 030021,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi 030025,China)
出处
《山西地震》
2023年第1期30-36,共7页
Earthquake Research in Shanxi
基金
山西省地震局科研项目(SBK-2320),震情跟踪定向工作任务“断层构造对晋冀蒙交界地电阻率异常的影响”。
关键词
地电阻率
井下观测
地表观测
观测系统
Ground resistivity
Underground observation
Surface observation
Observation system
