迎采巷道合理煤柱宽度留设研究

Study on Reasonable Width of Coal Pillar in Facing Mining Roadway

针对和善煤矿9103运输顺槽迎采动掘进合理煤柱宽度留设的问题,通过理论分析、FLAC3D数值模拟以及现场实测等相结合的研究方法进行研究。结果表明:和善煤矿9103运输顺槽留设20m的护巷煤柱,能够保证巷道的稳定性;同时可以提高采出率,降低资源浪费,增加企业效益。

Aiming at the problem of setting the reasonable coal pillar width in facing mining roadway of the 9103 transport trough in Heshan Coal Mine,the research method combining theoretical analysis,FLAC3D numerical simulation and field measurement is carried out.The results show that the stability of the roadway can be guaranteed by setting 20 m coal pillar in the transport chute of 9103 in Heshan Coal Mine.At the same time,it can improve the recovery rate,reduce the waste of resources and increase the benefit of enterprises.