五沟煤矿导水裂隙带发育高度预测

Research onset Safety Pillar Prevent Sand in WuGou Coal Mine

煤层开采导致覆岩产生移动变形破坏,描述覆岩破坏影响程度的导水裂隙带发育高度是评价顶板是否发生突水溃砂等灾害事故的重要指标之一,因此对影响导水裂隙带发育高度的采高、工作面几何参数、覆岩岩性及岩层结构等主要因素进行分析,利用模糊数学方法将非线性问题转换成线性问题进行计算,获得五沟煤矿10煤开采导水裂隙带发育高度预测公式,为五沟煤矿含水层下10煤层的安全开采提供指导。

Coal mining causes overburden strata and failure state,failure situation is described by the height of water conducting fractured zone.It＇s one of important indexes that evaluate whether roof occur water inrush accident.So analyzing main factors that parameters of working face,structures of rock strata that affects the height of water conducting fractured zone.It was used fuzzy mathematics method to convert nonlinear problem into a linear problem,and the formula of the height of water conducting fractured zone was got.It should be provide guidance for coalmining face safety mining.