采动影响下底层巷道位置优化布置及支护研究

Study on Location Optimization and Supporting in Bottom-roadway under Influence of Mining

对神华五虎山煤矿近距离煤层群中,上部煤层开采后,围岩应力重新分布对下伏煤层回采巷道布置的影响进行数值模拟,对比不同方案优缺点及围岩应力,结合矿山实际情况,确定巷道的最佳布置位置,并得到了现场监测数据的验证。

For closed distance coal seam group in Shenhua Wuhushan coal mine,after mining the upper coal,the mining gateway of lower coal seam is influenced by the surrounding rock stress redistribution,make numerical simulation on this,comparing the advantages and disadvantages of different schemes and surrounding rock stress,in combination with the practical situation of mining,determine the best layout of roadway position,and validated by the field monitoring data.