Aiming at the problem of mine water inflow in No.8 coal seam of No.18102 Face in Xiegou Coal Mine, the methods of field monitoring, numerical simulation, similar material experiment and theoretical analysis were used to carry out the research. Through FLAC3D numerical simulation and physical simulation, the development law of water conduction fracture zone in mining overburden was revealed, and its maximum height was determined to be 50.05 m. And it was confirmed that it could form hydraulic connection with overlying Shanxi Formation aquifer and No.6 coal seam. Based on the hydrogeological generalization method, the water inflow of the working face was predicted by the large well method and the water collecting corridor method respectively. The maximum predicted values were 2908.84 m3/d and 3288.12 m3/d respectively. The prediction results were compared with the field monitoring peak value, which showed that the prediction error of the large well method was less than 1%, which was significantly better than the water collecting corridor method.
田云雷. 基于大井法与集水廊道法的煤矿涌水量预测研究[J]. 煤炭与化工, 2026, 49(10): 56-60.
Tian Yunlei. Research on coal mine water inflow prediction based on large well method and collecting water corridor method. CCI, 2026, 49(10): 56-60.
