摘要
工业游散电流、金属接地体、地下埋设的金属管道是地电观测的主要干扰源。分析了大型变电站的巨大金属接地体及其产生的游散电流、浅层埋设的金属管道对地电观测造成的影响、数据变化与干扰的关系 ,计算了游散电流。并给出了避开干扰的距离公式及计算结果。
Industrious free electric current, mental pipes under ground and other mental objects are main interface sources. Free electric current, distance from which the interface can be reduced to the minimum and interfacing relationship between recording and source are discussed.
出处
《四川地震》
2000年第3期32-38,共7页
Earthquake Research in Sichuan
关键词
视电阻率观测
电磁干扰
地电观测
地震观测
apparent resistivity
electromagnetic interference
industrious free current