金属矿山地下水防治与协同保护技术研究  

Research on groundwater control and collaborative protection technology in metal mines

作　　者：韩贵雷 李维欣 贾玉琴 HAN Guilei;LI Weixin;JIA Yuqin(North China Engineering Investigation Institute Co.,Ltd.,Shijiazhuang 050021,Hebei,China;Technology Innovation Center for Groundwater Disaster Prevention and Control Engineering for Metal Mines Ministry of Natural Resources,Shijiazhuang 050021,Hebei,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：《矿产勘查》2024年第8期1508-1516,共9页Mineral Exploration

基　　金：自然资源部金属矿山地下水灾害防治工程技术创新中心项目(HK2023-B07)资助。

摘　　要：为解决金属矿山开采过程中矿山防治水与水资源、水生态保护之间的矛盾,本文开展了金属矿山地下水防治与协同保护技术研究。通过开展堵水帷幕浆液扩散搭接研究,取得如下成果:(1)修正了深孔单级压水试验、给定帷幕钻孔孔间距计算公式;(2)根据矿山防治水高承压、强岩溶、低渗透工况需要,研发室内注浆试验平台,并开展了注浆试验指导施工需要;(3)攻克受限空间帷幕注浆难题,实现钻探分支孔造斜段小于5 m、分支顶角大于37°,将布孔间距提高至36 m;(4)研发“制-注-控”一体化智能注浆系统,实现“1站4机16台套”多通道联动协同;(5)建立矿山防治水注浆技术体系,突破帷幕堵水-基岩回灌交互影响和多层位基岩大流量回灌技术瓶颈,重构矿区尺度内“帷幕-回灌”地下水双流场水力新平衡。本研究提出的金属矿山地下水防治与协同保护技术实现了矿山安全开发与地下水资源、水生态的协同保护,相关技术成果可为大水金属矿山防治水工作提供借鉴。Tn order to solve the contradiction between mine water hazard prevention and control,water resources and water ecological protection in the process of metal mining,this paper conducted research on underground water prevention and coordinated protection technology in metal mines.By conducting research on the diffusion and overlap of water blocking curtain slurry,the following results have been achieved.(1)Revised the calculation formula for deep hole single-stage water pressure test and given curtain drilling hole spacing.(2)Develop an indoor grouting test platform and conduct grouting tests to guide construction needs based on the high pressure,strong karst,and low-permeability conditions required for mine water prevention and control.(3)Overcome the difficulty of grouting confined space curtains,achieve drilling branch holes with inclined sections less than 5 m and branch top angles greater than 37°,and increase the spacing between holes to 36 m.(4)Develop an integrated intelligent grouting system of"preparation-grouting-control"to achieve multi-channel linkage and collaboration of"1 station,4 machines,and 16 sets".(5)Establish a technology system for preventing and controlling water injection in mines,break through the interactive effects of curtain water blocking and bedrock reinjection,and overcome the bottleneck of multi layer bedrock high flow reinjection technology,and reconstruct the hydraulic balance of the"curtain reinjection"groundwater dual flow field within the mining area scale.The technology proposed in this study for the prevention and coordinated protection of groundwater in metal mines has achieved the safe development of mines and the coordinated protection of groundwater resources and aquatic ecol⁃ogy.The related technological achievements provide reference for the prevention and control of water in large water metal mines.

关 键 词：矿山水害防治 协同保护 注浆技术 地下水回灌 

分 类 号：P641.8[天文地球—地质矿产勘探]