岩溶大水矿山暗河型导水通道探查与治理技术研究

对于很多可溶岩地区的矿山而言,采矿过程中往往面临井下突涌水问题,对矿山安全生产和作业人员生命安全造成严重威胁。部分岩溶大水矿山受地层岩性、产状及构造带发育特征等综合影响,往往存在主要的地下水补给通道,发育规模较大且集中的即为暗河型导水通道。通过采用地面物探、钻探勘察、超声测井及连通试验综合探查技术,有效查明某矿F_4断层下盘发育的主要导水通道的分布范围,同时利用地面钻孔投料和注浆技术进行了封堵,彻底切断了矿坑-30m水仓揭露涌水点与区域强岩溶地下含水层的水力联系,大幅减少矿坑排水量。研究成果对于指导类似条件岩溶矿山的涌水治理具有借鉴意义。

Study on Exploration and Treatment Technology of Underground River Water Channel in Karst Water Mines

For many mines in karst area, the mining process often faces the problem of underground water inrush, which will threaten the safety of mine production and the lives of operators. Part of the karst water mines are comprehensively affected by stratum lithology, occurrence, and development characteristics of structural belts. Channels with large scale and concentration is the underground channel. By using ground geophysical prospecting, drilling survey, ultrasonic logging and connection test comprehensive exploration technology, distribution range of main water channel developed in the footwall of F4 fault in a certain mine is effectively identified. At the same time, the surface drilling and grouting technology are used to block the water, which completely cut off the hydraulic connection between the water gushing point of the mine - 30m sump and the regional strong karst underground aquifer, and greatly reduced the mine drainage. The research results can be used for references to guide the water inrush control of similar karst mines.