Mine Discharge Prediction Of Dongsheng Coalfield Taige Temple No.1 Minefield

Mine discharge is the inflow water of unit time flowing into coal mines including surface water,fissure water and karst water during the process of mine production and mine construction.It is the main basis for the mine design departments to determine the drain equipment and make water control measures.Accurate prediction of mine discharge is of great significance to prevent the serious accidents such as mine water bursting and mine flooding ect and reduce the mining cost and mine safety.This paper mainly through analyses and research the geological and hydrogeological conditions of Taige temple No.1 minefield of Dongsheng coalfield,established a hydrogeological conceptual model and the corresponding mathematical model of groundwater movement on the basis of it.Using the visual modflow software to establish the three-dimensional numerical seepage model of mine discharge prediction,using the inversion method of hydrogeological parameters,obtained the accurate hydrogeological parameter values and partition it,then validate the precision of the model by calibrate the model.AS the first mining area of No.l minefield for example,to make the numerical simulation of mine discharge,predict the mine discharge.