高频大地电磁测深在深埋隧道中应用实例分析  

Application of High-Frequency Magnetotelluric Sounding to Deep Buried Tunnels

作　　者：杨毅明[1] 化希瑞[1] 

机构地区：[1]铁道第四勘察设计院,武汉430063

出　　处：《工程地球物理学报》2009年第S1期37-41,共5页Chinese Journal of Engineering Geophysics

摘　　要：深大长隧道的地球物理宏观预测是当今工程界亟待解决的重大前沿课题。本文首先系统分析了深埋隧道宏观预测的现状,然后简要介绍高频大地电磁测深的基本理论及应用,通过对深埋隧道实例分析,提出采用EH—4电导率成像系统的高频大地电磁法能够准确快速的探测断裂构造、岩溶等不良地质构造,对施工区的地质构造和不良地质体的赋存状态进行超前的宏观预测。In this paper,the systematic analysis of the exploration of deep buried tunnel is made,and then the basic theory and application of the high-frequency magnetotelluric sounding are briefly introduced. By analyzing the case of the deep buried tunnels,the high-frequency magnetotelluric sounding of the EH-4 electrical conductivity imaging system can be used to rapidly detect the bad geological structure such as faults,karst rock and so on.

关 键 词：高频大地电磁 EH-4系统 岩溶 隐伏断层 

分 类 号：P631.325[天文地球—地质矿产勘探] U452.11[天文地球—地质学]