Hydrogeological Conditions of 2#Coal Seam of Wannian Coal Mine
Mine water damage is one of the main disasters in coal mines.The analysis of hydrogeological conditions in mine water control work is an important basis to ensure the safety of coal mine production.Taking 2#coal seam of Wannian Coal Mine as the engineering background,combined with the coal seam mining area in the next three years,the water filling conditions and mine water inflow were analyzed.It was concluded that the main water sources of water damage in 2#coal seam were surface water,goaf water,direct water filling aquifer and Ordovician limestone water,and the working face was of pressure mining.On this basis,the hydrogeological conditions were divided,and the hydrogeological type of 2#coal seam was medium,and corresponding suggestions for water prevention and control work were proposed,which can provide guidance for coal mine safety production.
hydrogeological conditionswater inflowhydrological type
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