CHINA MINE ENGINEERING

This paper is based on the hydrogeological conditions of Daqiaogou coal industry, several aspects of water filling factors in mine are analyzed, the water inflow of the mine is predicted, When the production capacity of No.8 coal seam reaches 900000t/a, the normal water inflow is 9.21m³/h, and the maximum water inflow is 14.84m³/h, when the production capacity of No.9, No.10 and No.11 coal seams reaches 900000t/a, the normal water inflow is 9.21m³/h, and the maximum water inflow is 14.84m3/h.