Abstract:Huibaoling iron deposit is a large-scale sedimentary metamorphic type iron deposit in southwest of Shandong province. Water inflow is large and drainage cost is high in the deep part of the mine. It will threaten the safety in production. On the basis of hydrogeological investigation, hydrogeological drilling, water pumping and water discharge tests of Huibaoling iron deposit for many times, water-rich characteristics, hydrochemical characteristics and water pressure characteristics of each aquifer have been analyzed, and water filling mechanism of water filling types, water filling sources and water guiding channels have been identified. Water filling types are fault fracture zone exposed by tunnels, and poorly sealed boreholes filled with water. Water filling source mainly comes from caprock water. Water channels are fault fracture zones, such as poorly sealed boreholes and F3 fault. In view of the fault fracture zones and tensile fractures, water prevention countermeasures have been put forward, such as advanced water exploration in the working face, pre-grouting in the working face, grouting behind the wall and drainage of recharge source. In view of the poorly sealed boreholes, grouting and water-sealing countermeasures have been carried out, such as grouting at the bottom of the holes, sectional pressure relief grouting and cutoff wall grouting. It has achieved a good effect for water control.
