Study on Joint Water Prevention and Control Scheme of Curtain Grouting Near Ore Body in a Water-rich Mine
Water prevention and control is an important part of maintaining safe production and sus-tainable development of mines.An iron mine is a karst water mine.It is expected that the water inflow after mining can reach 19 164.36 m3/d,which brings potential safety hazards to mining operations.A karst water-rich iron mine is expected to have a water inflow of 19 164.36 m3/d after mining,which brings safety hazards to mining operations.Based on the hydrogeological characteristics of the mine and the actual underground mining conditions,the methods of advanced water exploration,curtain grouting near the ore body and anti-seepage curtain to strengthen the water-proof pillar are adopted.Finally,a completely closed water-proof body is formed in the upper middle ore body,and an incompletely closed anti-seepage and water-proof lay-er is formed in the lower middle ore body.The proposed' lugging and avoidance combination,prediction first'joint water prevention and control scheme can effectively ensure the safe mining of ore bodies,which can be used as a reference for similar large water mines.
water-rich minemine water managementcurtain grouting near ore bodywater-proof pillar
NETL
NSTL
万方数据
