摘要
以丹江口水源区某铁矿尾矿库为例,采用高密度电阻率法对尾矿库进行了拟三维探测,针对出现的疑似渗流通道开展了尾矿坝二维精细剖面探测,查明了4处尾矿坝结构薄弱区;同时,鉴于渗漏主要由地下水运移作用导致,在雨季前后对尾矿坝进行了三次监测研究,得到了坝体电性结构的动态响应,确定了1处疑似泄露点,验证了高密度电阻率法在尾矿坝监测应用中的可行性,为尾矿坝稳定性研究提供了一种技术手段。
The dam failure and leakage risk of tailings dam are directly related to the safe operation of tailings pond,which is an important environmental safety problem.In this paper,the authors used the high density resistivity method to detect the two-dimensional fine section of tailings dam,and found four weak areas of tailings dam structure.Since the leakage is mainly caused by the movement of groundwater,monitoring studies were carried out for three times on the tailings dam before and after the rainy season and,as a result,the dynamic response of the electrical structure of the dam body was obtained,with a suspected dew point determined.The feasibility of application of high density resistivity method to the tailings dam monitoring was verified,and the result provides a new technical means for tailings dam stability study.
作者
刘道涵
罗士新
陈长敬
LIU Dao-Han;LUO Shi-Xin;CHEN Chang-Jing(Wuhan Center,China Geological Survey,Wuhan 430223,China)
出处
《物探与化探》
CAS
北大核心
2020年第1期215-219,共5页
Geophysical and Geochemical Exploration
基金
中国地质调查局项目“丹江口水库南阳—十堰市水源区1∶5万环境地质调查”(DD20160256).
关键词
尾矿坝
高密度电阻率法
监测
渗流通道
tailings dam
high density resistivity method
monitor
seepage channel
