论文部分内容阅读
安阳县东滩煤矿为年产6万吨的村办矿,该矿开采二_1煤,煤厚5m,煤层稳定,单斜构造,埋藏深度25～70m,开采条件良好。但该矿受地表水影响很大,北面有漳武水库,南面、东面有善应河环绕。矿井正常涌水量 80～ 200m~3/h,受季节影响较大。 1991年9月19日下午3时,北翼总回风巷正前靠下帮突然透水,涌水量达500m~3/h,将矿井二、三水平淹没,造成2人死亡。 突水原因:该矿煤层浅部靠近露头有老空,水库蓄水时水位上升,淹没滩区,库水通过老空涌入井下,造成淹井事故。 根据突水原因制订了地面降低水库水位,井下增加排水能力的应急方案。通过地面堵漏洞,井下强排后,
Dongtan Coal Mine in Anyang County is a village-owned mine with an annual output of 60,000 tons. The mine mines 2_1 coal with a coal thickness of 5m. The coal seam is stable and has a monocline structure with a burial depth of 25-70m and good mining conditions. However, the mine is greatly affected by surface water. There is Zhangwu Reservoir to the north, and the south should be surrounded by a good river. Normal water inflow of 80 ~ 200m ~ 3 / h, affected by the seasons. At 19:00 on September 19, 1991, the total air return lane at the north wing of the north wing suddenly came under water and the water inflow reached 500m3 / h, flooding the second and third mines, causing 2 deaths. Reason of water inrush: The coal seam in the mine is near the outcrop near the outcrops. The water level rises when the reservoir is impounding, flooding the floodplain. The reservoir water pours into the mine through the old sky, causing the accident of flooding. According to the causes of water inrush for the ground to reduce the water level of the reservoir, underground drainage capacity to increase the contingency plan. Plugging holes through the ground, strong underground row,