Real-time Prediction Based On Groundwater Dynamic Monitoring In Longtangyan Iron Mine

The large water flow mine with complex hydrogeological conditions and the dynamic monitoring of groundwater in the mining area are not only the important basic work for ensuring the safety of mine production,but also the basic data source for the comprehensive utilization of mine water resources and water environment protection design.The groundwater dynamic monitoring system is established according to the hydrogeological conditions and the development and utilization plan of the deposit.Based on the dynamic information obtained by the groundwater dynamic monitoring system,a numerical simulation model for real-time prediction of mine water inflow was developed;according to the real-time prediction result of the mine water inflow,technical support is provided for the timely adjustment of mine drainage plan and mine production water supply and drainage plan.The groundwater dynamic monitoring and real-time forecasting system is established in longtang iron mine,and the following conclusions are obtained in the research:(1)in a large water mine with complicated hydrogeological conditions,In the stage of geological and hydrogeological exploration,more work is put into work.In the prediction of mine inflow,the data richness meets the requirements of the analytical method and the numerical method.(2)during the mine construction period and during the mining period,the hydrogeological information obtained during the exploration phase will be continuously verified,supplemented or corrected;It should be based on the above validation,supplement or correct information,based on the exploration achievements of mine water inflow forecast model,validation,complement and perfection,and timely forecast,to be more precise guide the mine production.(3)according to the hydrogeological conditions and the development and utilization plan of the deposit,a monitoring system for groundwater dynamics(focusing on the water level in the surface monitoring wells and the water pressure at the downhole monitoring points)is established,based on the real-time dynamic monitoring of groundwater,mining area can improve the mine water inflow forecast model;According to the real-time forecast of water inflow in mine,it can accurately support the production arrangement of mine safety and economy.