基于自然电场与电阻率法的尾矿库渗漏探测数值模拟研究  

Numerical study on leakage detection of tailings pond by self-potential and DC resistivity methods

作　　者：杜兴忠 谢静 官俊峰 崔益安[2] DU Xingzhong;XIE Jing;GUAN Junfeng;CUI Yian(POWERCHINA Guiyang Engineering Corporation Limited,Guiyang 550081,China;School of Geosciences and Info-Physics,Central South University,Changsha 410083,China)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵阳550081 [2]中南大学地球科学与信息物理学院,长沙410083

出　　处：《物探化探计算技术》2024年第2期190-196,共7页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：中国电建贵阳勘测设计研究院有限公司重大科技项目(YJZD2020-02)。

摘　　要：尾矿库堆存是处置矿山尾矿的常规方案,但尾矿库渗漏严重威胁生态环境。及时查明地下渗漏情况,有助于采取有效的补救方案。笔者基于有限元—无限元耦合法开展数值模拟研究,探究基于直流电阻率法及自然电场法的综合物探技术在尾矿库渗漏探测中的应用效果。研究结果表明,直流电阻率法和自然电场法能相互结合、验证、补充,能够揭露地下电阻率结构异常,同时能提供渗漏点的位置及深度信息。这些研究可为尾矿库及其它渗漏问题提供数值参考和技术方案指导。Tailings storage is a conventional way of disposal,but tailings leakage seriously threatens the ecological environment.Timely detection of underground leakage is essential for designing efficient remediation strategies.In this paper,we conducted a numerical simulation study by the finite-infinite element coupling method,which aimed to explore the feasibility of the integrated geophysical prospecting technology based on DC resistivity and self-potential methods in tailings pond leakage detection.The results show that the two electrical exploration techniques can be combined,verified,and complementary.This combination reveals structural anomalies in resistivity and provides information on the location and depth of potential leaks.Our work provides numerical reference and technical scheme guidance for tailings ponds and other leakage problems.

关 键 词：尾矿库渗漏 综合物探 直流电阻率法 自然电场法 

分 类 号：P631.3[天文地球—地质矿产勘探]