综合物探技术在大坝渗漏探测中的试验研究  

Experimental study on comprehensive geophysical prospecting technology in dam leakage detection

作　　者：张建清 徐磊 李鹏 马圣敏 肖璐笛 

机构地区：[1]长江地球物理探测(武汉)有限公司,武汉430010 [2]长江勘测规划设计研究有限责任公司,武汉430010

出　　处：《地球物理学进展》2018年第1期432-440,共9页Progress in Geophysics

基　　金：国家重点研发计划(2017YFC0405000)资助

摘　　要：随着我国水库大坝建设的快速发展,水库大坝病害检测与治理问题需要得到重视.但是,由于水库大坝现场环境的不同,以及大坝渗漏的程度不同,目前常用的各种大坝渗漏物探技术都有其多解性与局限性,不能单独实现对大坝渗漏路径的较快速、较精确的探测.本文对大坝渗漏综合物探技术体系开展了相关研究,提出了大坝渗漏综合物探技术体系应遵循"先整体后局部、先粗略后精细,各种物探技术互相结合、互相验证、相互补充、相互约束"的探测原则,并结合工程地质、水文地质等多学科进行综合分析.同时,本文提出了一种先采用大地电磁法和高密度电法进行整体探测,再采用高密度电法和微动法进行局部探测的大坝渗漏综合物探技术体系方案,并在试验中取得了较好的探测效果.With the rapid development of reservoir dam construction in China,we need to be paid attention to the reservoir dam disease detection and control problems. But,for the difference of the reservoir dam site environment and the degree of the dam seepage,the each commonly used geophysical technology of dam leakage has its own problems of multiple solutions and limitations.They can not achieve a rapid and accurate detection of dam seepage path independently. In this paper,the comprehensive geophysical prospecting technology system of dam seepage is studied,and put forward the principle of ‘from the whole to the part,from the rough to the precise, each geophysical prospecting technology mutual binding, mutual verification, mutual complement and mutual restraint＇. And we should combine with engineering geology,hydrology and other disciplines to carry out a comprehensive analysis. At the same time,this paper puts forward a comprehensive geophysical prospecting technique system for dam leakage that firstly the magnetotelluric method and high density resistivity method are used to carry out the overall detection,and then the high density resistivity method and microtremor method are used to carry out the local detection. And it achieved good detecting results in the test.

关 键 词：综合物探 大坝渗漏 K剖面法 EH-4 微动 

分 类 号：P631[天文地球—地质矿产勘探]