以榆神矿区草湾沟煤矿3-1号煤层为例,分别采用理论计算和数值模拟实验对该煤层导水裂隙带发育规律及最大高度进行研究。得出理论公式计算和数值模拟实验的结果具有较好的一致性,3-1号煤层开采产生的导水裂隙带不会对矿区关键含水层产生影响,导水裂隙带最大高度在60m左右更为可靠。
Taking No.3-1 coal bed of Caowangou Coal Mine of Yushen Mine as example,the paper adopts theoretical calculation and numerical modelling test respectively for the diversion fissure zone development law and the maximum height of the coal bed.The results of theoretical formula calculation and numerical modelling test are in good consistency.The diversion fissure zone generated by No.3-1 coal mining will not influence the key aquifer of the mine.It will be more reliable if the maximum height of diversion fissure zone is about 60 m.