摘要
通过检查、实验和理论计算,探讨了固原台北东测道地电阻率测值异常变化的原因,定量地计算了测量线路漏电和降水对固原台地电阻率观测的影响,并研究和总结了这种影响的机制。从而认为,2012年12月下旬以来固原地电阻率出现的异常变化不属于地震异常,并为今后判断引起地电测值变化的原因提供了依据。
Based on examining, experiment and theoretical calculations, the paper discussed the cause of abnormal changes of earth resistivity observation in the N45° E direction at Guyuan seismic station. The paper quantitatively calculated the influence of measuring circuit leakage and precipitation on earth resistivity observation in the N45°E direction, summarized the mechanism of the influence. It was proved that the abnormal changes of earth resistivity observation occurred in late December 2012 is not seismic anomaly. This result provides us the foundation to identify the cause of abnormal changes of earth resistivity observation.
出处
《华南地震》
2016年第1期24-29,共6页
South China Journal of Seismology
基金
地震科技星火计划项目"固原地电台浅部地下结构对视电阻率观测的影响研究"(XH14053Y)资助
关键词
地电阻率
异常
原因分析
漏电
Earth resistivity
Anomaly
Reason analysis
Electric leakage
