综合物探方法在尾矿库截渗墙勘察中的应用  

Application of Comprehensive Geophysical Prospecting Method in the Investigation of Impervious Wall of Tailings Reservoir

作　　者：郝海强 王建国 刘大全 韩利辉 HAO Haiqiang;WANG Jianguo;LIU Daquan;HAN Lihui(North China Engineering Investigation Institute Co.,Ltd.,Shijiazhuang 050021,China;Technological Innovation Center for Groundwater Disaster Prevention and Control Engineering for Metal Mines,Ministry of Natural Resources,Shijiazhuang 050021,China)

机构地区：[1]华北有色工程勘察院有限公司,河北石家庄050021 [2]自然资源部金属矿山地下水灾害防治工程技术创新中心,河北石家庄050021

出　　处：《河南科技》2023年第13期58-62,共5页Henan Science and Technology

摘　　要：【目的】为了快速高效完成拟建坝前截渗墙场地勘察工作,需要对物探方法在勘察工作中的可行性进行研究。【方法】利用瞬变电磁法和天然电场选频法相结合的综合物探方法施测,充分发挥瞬变电磁法多匝小线圈探测分辨率高和天然电场选频法设备轻便灵活、适应性强等优势。【结果】两种方法相互印证,解决了单一方法多解性问题,提高了勘察精度,圈定了易渗漏区段,为钻探布置和截渗墙设计提供了支撑。【结论】综合物探方法在场地勘察中具有效率高、成本低、精度好的优势,在同类地区场地勘察中值得推广应用。[Purposes]In order to quickly and efficiently complete the site investigation of the cut-off wall in front of the proposed dam,it is necessary to study the feasibility of geophysical prospecting methods in the investigation work.[Methods]The comprehensive geophysical prospecting method combining transient electromagnetic method and natural electric field frequency selection method was used to measure,giving full play to the advantages of high resolution of multi-turn small coil detection of transient electromagnetic method and light,flexible and adaptable equipment of natural electric field frequency selection method.[Findings]The two methods confirm each other,solve the problem of multiple solutions of a single method,improve the survey accuracy,delineate the easy leakage section,and provide support for drilling layout and cutoff wall design.[Conclusions]The comprehensive geophysical prospecting method has the advantages of high efficiency,low cost and good accuracy in site investigation,and should be popularized and applied in site investigation in similar areas.

关 键 词：截渗墙 场地勘察 瞬变电磁法 天然电场选频法 综合物探 

分 类 号：P642.22[天文地球—工程地质学] P631[天文地球—地质矿产勘探]