Abstract:Sanshandao gold deposit belongs to typical fracture zone altered rock type gold deposit. Accompanying with the deepening of mining depth, the water inflow is increasing. Hydrogeological survey, groundwater dynamic observation, hydrogeological test, water sample analysis and test are used to find out hydrogeological characteristics and water filling factors. It is indicated that with the deepening of the mining level, deep structural fissure water gradually becomes the direct supply source of deep pit filling water, and the deeper the mining level, the higher the contribution rate of deep tectonic fissure water. Based on the actual inflow in the mining area, the groundwater flow numerical model is used to predict the water inflow of different mining horizontal sections. It is turned out that water inflow is 54155 m3/d at the depth of 780m, 66611m3/d at the depth of 870m, and 82387 m3/d at the depth of 960m. It can be regarded as the basis for the prevention and control of water treatment.
