The Prediction Of Mine Inflow In The LAT Mine Of ShanXI

Coal mine geological work and specialized hydrogeological work are almost empty in LAT coal mine in Shanxi Province.Mine water inflow is expected to be one of the key problems of coal mine design and mine drainage water prevention capacity and resilience and provide protection for the safety of coal mine production.So far,the mine water inflow is expected to vary greatly value and the actual value,the essence of this error is mine geological,hydrogeological conditions and differences in generalized hydrogeological and mathematical models.Unfortunately there is no single method is expected and models are difficult to eliminate this difference.Passing the geological data collection,geological survey drilling,water,and chemical methods and hydrogeological conditions within the mine conducted a comprehensive analysis.The main factors of water filled mine coal seams is analysis.On this basis,we adopted the big well method and hydrogeological analogy method and simulation software Visual Modflow to expected coal mine water inflow.The analysis shows that the Permian aquifer 4~#coal mainly water-filled water,Taiyuan limestone aquifer is 8~#coal mainly water-filled water."big well method"expected mining 4~#coal mine water inflow of 11~15m~3/h,expected water inflow mining 8~#coal water inflow of 66~92m~3/h;the hydro-geological analogy method Unit drawdown law anticipated mining mining 4~#coal mine water inflow f 27~37m~3/h,expected water inflow mining 8~#coal water inflow of 38~55m~3/h;Numerical simulation of water inflow is expected coal mining 8~#of 52~73m~3/h.Considering various factors,when the anticipated mining4~#Coal Mine Inflow"big well method"and the normal water inflow is expected to be 11m~3/h,and the maximum water inflow will reach up to 15 m~3/h.When it planned to mine coal mine water inflow in 8~#,the numerical simulation will be used and the normal water inflow expected to be 52 m~3/h,the largest inflow will be 73m~3/h.