电磁方法在三峡输电工程中的应用  

Application of Electromagnetic Method in Power Transmission of Three Gorges Project

作　　者：胡家华[1] 陈清礼[1] 严良俊[1] 郑仁淑[1] 

机构地区：[1]江汉石油学院地球物理系,湖北荆州434023

出　　处：《江汉石油学院学报》2002年第4期107-109,共3页Journal of Jianghan Petroleum Institute

基　　金：CNPC物探重点实验室项目 (2 0 0 1J1 0 3)

摘　　要：用瞬变电磁测深 (TEM )和大地电磁测深 (MT)两种方法测量了三峡直流输电工程中接地极址的地下电性分布 ,将TEM资料通过时频转换 ,转换成频率域的视电阻率曲线 ,它与MT的视电阻率曲线对接后 ,再经过反演可以得到极址下方由浅层到深层的电阻率断面图 。The ground electrical distribution of earthed pole in direct current power transmission of Three Gorges Project is measured by using transient electromagnetic method (TEM) and magnetotelluric method (MT). Data from TEM are converted into apparent resistivity curves of frequency domain by using time-frequency transmission, after it is jointed end by end with the apparent resistivity from MT, a resistivity profile below the earthed pole is obtained by inversion, by which reliable and necessary references are provided for designing and building the earthed pole.

关 键 词：电磁方法 三峡输电工程 应用 瞬变电磁法 大地电磁勘探 视电阻率 电特性 极址 三峡工程 

分 类 号：TM721.2[电气工程—电力系统及自动化]