Research And Prevention Of Water Inflow In Yuanbaoshan Open Pit Mine

The amount of mine water inflow is increasing gradually with the increase of Yuanbaoshan open pit mine area,which poses a heavy threat to the mine production safety,so the research on water inflow situation has a certain pratical significance.The study is conducted by analyzing hydrogeological characteristics,forecasting mine water inflow and discussing mine water prevention based on the analysis of geology and hydrology data.Study suggests that the water-filled resources include surface water,groundwater and atmospheric precipitation.The quaternary pore phreatic aquifer is the main water-filled resources.The mine water inflow is predicted by regression analysis method,numerical method(GMS)and water equilibrium analysis method,the results are 1.33×108 m3/a?1.41×108 m3/a?0.96x 108 m3/a respectively,which shows that numerical method(GMS)fits the actual mine water inflow best.The research on pit mine water prevention is carried out comprehensively from two prevention aspects of surface water and groundwater,in order to determine the actual prevention scheme suitable for open pit mine and give effective suggestion to comprehensive utilization of mine water.The results of this paper have certain reference value to mine production safety and to other similar coal mine construction.