摘要
为了避免"三软"煤层掘进过程中出现煤炮现象,根据巷道破坏机理及卸压原理分析,探讨了采用卸压孔技术在"三软"巷道掘进迎头的应用,实现了明显改善巷道施工安全,提高巷道成型效果及经济效益的目的。
To avoid coal burst in driving roadway with three-soft coal seam ,the authors present the application of borehole pressure relief technology by analysis of the roadway failure mechanism and pressure relief principle , which has obviously improved the roadway construction safety ,the shaping effects and the economic benefits .
出处
《江西煤炭科技》
2015年第1期34-35,共2页
Jiangxi Coal Science & Technology
关键词
卸压孔
三软煤层
巷道掘进
borehole pressure relief
three-soft coal seam
roadway driving