摘要
YRY-4分量钻孔应变仪具有高分辨力特点,在实际运行过程中能够记录到多种类型的外界干扰,表现为观测曲线突变或趋势异常。选取山西忻州地区5套四分量钻孔应变仪自运行以来的观测资料,基于各类干扰因素特征进行分析,结果表明:在日常运行中,影响钻孔应变观测的典型干扰因素主要有观测系统、自然环境、场地环境、人为干扰等;观测系统运行稳定,映震效能良好。
The YRY-4 component borehole strain gauge has the characteristics of high resolution and can record various types of external interference in actual operation processes,which is manifested as sudden changes or abnormal trends of observation curves.This study selects and analyzes the observation data of five sets of four component borehole strain gauges in the Xinzhou area,Shanxi Province since their operation,based on the characteristics of various interference factors.The results show that in daily operation,typical interference factors affecting borehole strain observation mainly include observation systems,natural environments,field environments,human interference,etc.The observation systems are stable and have good seismic reflection efficiency.
作者
尚永明
SHANG Yongming(Xinzhou Earthquake Monitoring Center Station,Shanxi Earthquake Agency,Shanxi Province 034200,China;National Continental Rift Valley Dynamics Observatory of Taiyuan,Shanxi Province 030025,China)
出处
《地震地磁观测与研究》
2023年第5期159-166,共8页
Seismological and Geomagnetic Observation and Research
