韩_1断层对南三采区煤层底板的破坏,加上矿压、水压联合作用,使下三带裂隙破坏带加深,导水裂隙带升高,保护带失去阻水能力,是这次突水的主要原因。在开采受承压水威胁的煤层时,其断层防水煤柱的留设要考虑采动矿压、水压的作用以及断层对岩层的破坏,以慎重确定保护带的阻水能力。 The failure of South Korea-1 fault to the coal seam floor in South Third Mining Area, combined with the joint action of pressure and water pressure, deepened the fracture damage zone of the lower three zones, led to the rise of the fracture zone and the loss of water blocking capacity of the belt, The main reason for water inrush. When mining coal seams threatened by confined water, the confinement of waterproofing pillars should consider the effect of mining pressure and water pressure and the damage to the rock strata caused by faults to carefully determine the water blocking ability of the protective belt.