兴安矿井田位于河谷区,矿区内有河流经过,并直接切割七—九层煤露头。当矿井开采层由远离河流两千米采至距河八百米地段(矿区中部),矿井湧水量猛增,超出设计湧水量的三倍。河流对矿井的补给量究竟多大?开采能否再向河流靠近?河流下要留多大的煤柱?这都是需要解决的问题。我们坚持十二年对矿坑水动态长期观测与研究,基本掌握了矿井湧 Xing’an mine field is located in the valley area, there are rivers within the mining area, and directly cut seven or nine layers of coal outcrop. When the mine’s production floor is two thousand meters away from the river and collected from the 800-meter section of the river (central mining area), the water inflow from the mine soared to more than three times of the designed inflow. How much is the river’s recharge to the mine? Can the exploitation flow closer to the river? How much coal pillar should be left under the river? These are the problems to be solved. We adhere to twelve years of long-term dynamic observation and study of mine water, basically mastered the mine surge