大采高工作面回采巷道护巷煤柱合理宽度研究

Research on rational width of entry protection coal-pillar in large mining height workface

为研究大采高工作面合理护巷煤柱的留设问题,以康河煤矿6103大采高工作面回采巷道为研究对象,通过理论计算和数值模拟分析,得出了合理的护巷煤柱宽度,并经工程实践论证了其可行性,为类似条件下大采高工作面护巷煤柱的留设提供了理论依据。

For the study on the problem of rational width of entry protection coal-pillar, according to the gateway of 6103 mining face with large mining heitht in Kanghe mine, through theoretical calculation and numerical simulation, rational width of entry protection coal-pillar was educed, and its feasibility was demonstrated through engineering practice, which provided some theoretical references for preserving reasonable coal-pillar for the similar coalfaee with large mining heitht.