钢绞线对地电阻率观测的影响
Influence of steel strand on geoelectrical resistivity observation
刘丽 1郅红魁 1黄恩贤1
作者信息
摘要
2021年5-11月,河南潢川地震台地电阻率EW测道观测曲线出现较大台阶,而NS测道变化平稳.从自然环境、场地环境、观测系统等方面开展干扰排查,排除了降雨、场地环境的影响.调查发现,EW测道地电阻率观测曲线的台阶、突跳等现象,应为地电架空外线路钢绞线漏电所致.
Abstract
From May to November,2021,the EW(East-West)channel of geoelectrical resistivity observation curve at the Huangchuan Seismic Station in Henan Province showed a significant step-like changes,while the NS(North-South)channel remained stable.We carried out interference investigation considering natural and site environments,as well as the observation system,ruling out the influence of rainfall and site environmental factors.It was found that the step-like changes and sudden jumps in the resistivity observation curve of the EW channel should be caused by the leakage from the steel strands of the overhead power lines used in the geoelectrical measurement setup.
关键词
地电阻率/钢绞线/漏电Key words
geoelectrical resistivity/steel strand/leakage引用本文复制引用
基金项目
中央公益性科研院所基本科研业务专项(IGCEA1902)
河南省地震构造探查工程项目()
出版年
2024
国家科技期刊平台
NSTL
万方数据