CSAMT法在高速公路长大深埋隧道勘察中的应用研究  

Application of CSAMT electromagnetic image system in survey of deeply-buried long tunnels for expressways

作　　者：孙英勋[1] 

机构地区：[1]昆明理工大学

出　　处：《地球物理学进展》2005年第4期1184-1189,共6页Progress in Geophysics

基　　金：云南省交通厅科技项目基金(811209A)资助

摘　　要：CSAMT法是一套综合了MT和AMT各自优点的电磁自动采集和处理系统.本文介绍了CSAMT的原理、特点、工作方法和资料处理.该系统首次运用于高速公路长大深埋隧道勘察中,结合其它手段,成功解译出了隧道的软弱层、地下水及断层破碎带的位置,为划分隧道围岩类别提供了较好的依据,同时也为高速公路长大深埋隧道提供了一种新的勘察方法.CSAMT system is of electromagnetic auto collecting and analysis system. It has advantages both from MT and AMT. The Paper discusses the principle, characteristics, working methodology and data analysis of CSAMT. For the fist time this system is applied in surveying deeply-buried long tunnel in Expressway in Yunnan. Combined with other technical methods CSAMT successfully interprets the location of soft and weak layer, underground water and broken fractures. The CSAMT provides good rationale for the classifying of surrounding rocks of the tunnel. It is a new methodology for surveying and investigating deeply-buried long highway tunnels.

关 键 词：桥隧工程 CSAMT 可控源音频大地电磁法 长大深埋隧道 高速公路 

分 类 号：P631[天文地球—地质矿产勘探]