【摘要】 针对如何确定导水断层附近的防水煤(岩)柱宽度是困扰煤炭开采的问题,以开滦集团荆各庄矿3092工作面为例,综合运用经验公式、数值模拟和原位探测来确定其断层防水煤(岩)柱的安全宽度,最终得出了符合实际的且小于原留设宽度的断层防水煤(岩)柱安全宽度,为该矿节约了可采储量,延长了矿井服务年限,具有显著的社会和经济效益;同时该法为本矿及相似矿井以后处理类似问题提供了参考,具有较高理论和现实意义。更多还原

【Abstract】 It is always difficult to determine the safe width of waterproof coal (rock) pillar around faults. This paper presents a method for the determination of safe width of waterproof coal (rock) pillar around fault based on the geological conditions at No 3092 working face in Jinggezhuang Coal Mine,Kailuan. The method has applied various synthetically empirical formulas,numerical simulation and field exploration. In this way,a smaller safe width of waterproof coal (rock) pillar around fault is obtained comparing to previous safe width. Therefore,it results in an increase of recoverable reserves and mine life in Jinggezhuang Coal Mine. In particular,the method can be applied in other mines with similar geological conditions.更多还原