一种隧道水体不良地质体超前地质预报方法——瞬变电磁法  

Advanced Geologic Forecasting for Unfavorable Geological Body with Water——Transient Electromagnetic Method

作　　者：李貅[1] 武军杰[1] 曹大明 沈梅芳[1] 李超[1] 

机构地区：[1]长安大学地质工程与测绘工程学院,西安710054 [2]成都畅达通地下工程科技发展有限公司,成都610041

出　　处：《工程勘察》2006年第3期70-75,共6页Geotechnical Investigation & Surveying

基　　金：陕西省交通科技项目(02-11K)资助

摘　　要：本文在现有隧道超前地质预报方法的基础上,引进了一种新的隧道超前地质预报的方法—瞬变电磁法。该法对低阻含水断层、充泥充水溶洞、含水含泥破碎带等水体不良地质体反映灵敏。通过对瞬变电磁法在隧道探测中关键技术的研究,解决了隧道背景影响和装置自身过渡过程影响等关键技术问题,成功地将瞬变电磁法用于隧道超前地质预报。通过对实例验证结果表明,应用瞬变电磁法进行隧道水体不良地质体超前地质预报是有效的。The new method method is introduced Based unfavorable geological bodies techniques for the exploration configuration itself have been of advanced geologic forecasting for tunnel engineering-transient electromagnetic on the currently-used methods for the forecasting, which is sensitive to the filled with water or mud such as faults, caves and zones of rock fracture. The key in tunnel such as the impact of tunnel background and the transient process of the successfully solved through the study on tunnel exploration with the said method. The results from practice show that the said method is effective to the advanced geologic forecasting of the unfavorable geological bodies filled with water.

关 键 词：隧道 超前地质预报 瞬变电磁法 水体不良地质体 

分 类 号：P631.22[天文地球—地质矿产勘探]