地震工程学报2016，Vol.38Issue(z2)：240-249,10.DOI:10.3969/j.issn.1000-0844.2016.Supp.2.0240
井下地电阻率观测异常核实实例
Anomaly Confirmation in a Deep-well Geo-electrical Resistivity Observation
摘要
Abstract
Vacillation changes occurred synchronously in three channels of the deep-well geo-electrical resistivity observation at the Hanwang station in the Chinese city of Longnan on December 17, 2015, and continued until December 24.The cause of these changes could not be determined, so we verified the anomaly on site.After a field survey and a comparative analysis of the observation data, we found that the disturbances were not from changes in the electrical properties of the deep underground medium, but from shallow interference.This could have been a disturbance in the high-voltage power through the station, or an enhanced conduction of the wetting surface caused by watering the grass in the observation area of the station.By identifying this anomaly, a comprehensive understanding of deep-well geo-electrical resistivity observation was acquired, and experience of the verification procedure and analysis method of data mutation was accumulated.关键词
地电阻率/振荡变化/异常核实/资料分析/结论判定Key words
geoelectrical resistivity/vacillation change/anomaly confirmation/data analysis/conclusion determination分类
天文与地球科学引用本文复制引用
高曙德,郑卫平,安海静,陈彦平,梅东林,缑亚江,杜春鑫..井下地电阻率观测异常核实实例[J].地震工程学报,2016,38(z2):240-249,10.基金项目
甘肃省地震局地震科技发展基金(2014Y03,2016Y01) （2014Y03,2016Y01）
