Study On The Hydrogeological Characteristics And Inflow Forecast In The Harigentai Polymetallic Mine, Inner Mongolia

Through data collection, pumping tests, water sample analysis and laboratory data compilation methods to study the hydrogeological characteristics of the Harigentai of Xiwuzhumuqin Counties polymetallic mine, mine water inflow forecasting. Geological conditions in the study area were analyzed, including aspects of the study area regional geological setting, hydrogeological conditions, topography, lithology, geological structure. Hydrogeological conditions of the existing research on the analysis of the study area, combined with field investigation, identified the basic supplies, runoff and drainage law of area groundwater. Studies suggest that the main supply of groundwater for precipitation; bedrock fracture water excreted mainly in the form of springs, Quaternary gap dive mainly in the form of excretion of the main irrigation and evaporation. Fractured bedrock is developed, rich water is uniform, hydrogeological characteristics moderate.Further drilling strata determined by hydrology, aquifer in the study area in the border areas, impermeable layer buried depth, thickness, hole pumping test to determine the hydrologic characteristics of the curve, the actual amount of water, the largest water inflow, hydrogeological conditions clear groundwater, water physical characteristics and chemical characteristics of the aquifer types and hydrogeological characteristics; by pumping tests to determine the rich water and hydrogeological parameters of the aquifer; by drilling core catalog, further analysis of the study area stratigraphic distribution, thickness, degree of weathering, cracks broken, etc., come to the possible penetration; through water quality analysis, the chemical characteristics of the water in the aquifer.In a comprehensive analysis of hydrogeological characteristics Hari root station polymetallic deposits, based on studies of the mine filled with water sources, water filling factors; mine discharge current calculation method combines reality and mine is based above information and reference, select hydrogeological water corridor method, Q-S curve extrapolation and prediction methods for the study of three kinds of methods of mine water inflow area analysis, predicting mine discharge in order to play the role of mutual authentication. Final determination of normal water inflow to the mine761.62m3/d, the largest water inflow of803.28m3/d.