The ninth mining area of 2971 west working face of Qianjiaying Mine is the first working face. The hydrogeological conditions in the ninth mining area are relatively complex. The aquifer of the No. 5 coal seam roof with medium water yield, is relatively strong in some parts. The comprehensive geophysical exploration technology combined with advanced water discharging technology and scientific water drainage system to deal with water prevention and control, which ensured the safe mining.
张亚南. 5煤层顶板砂岩裂隙含水层下大水工作面的水害综合防治[J]. 煤炭与化工, 2020, 43(4): 50-53，56.
Zhang Ya’nan. Comprehensive prevention and control of water disaster in large water face under sandstone fissure aquifer of No.5 coal seam roof. CCI, 2020, 43(4): 50-53，56.
