Numerical simulation study on mine discharge of Xiyu coal mine in Taiyuan
2011
To guarantee the protection of groundwater resources and the safety of Xiyu coal mine in Taiyuan, numerical simulation method was used to study the mine discharge of No.2 level mining. On the basis of comprehensive analysis of geological and hydrogeological conditions of the study area, conceptual model and mathematical model of karst groundwater movement in Fengfeng formation of middle Ordovician were established, and the Visual MODFLOW software of groundwater simulation was used to solve the numerical model. Using this model, the mine discharge of No.2 level mining was predicted. The results show that the generalization of hydrogeological conditions is right, and the establishment of mathematical model is reasonable. The mine discharge in normal year, wet year and dry year is 3750m 3 /d, 3802m 3 /d and 3650m 3 /d respectively. It can provide scientific basis for the protection of karst groundwater resources and the prevention of mine water of Xiyu coal mine.
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