In order to reach a large,untapped reserve of high-quality coal,D8 Cloverlick Mine proposed to mine a corridor nearly 60......

The application of destressing method can change the distribution patterns of the stress field in the weak rock surround......

北洺河铁矿-95 m 水平4#采场进路联巷及回采进路在掘进过程中或成巷后不久就发生片帮冒顶,采用密集的 U 型可缩式金属拱架仍未能控......

提出两种维护软岩大断面峒室的新型掘巷卸压法；借助有限元法分析了它们的卸压机理，合理参数和适用范围；最后，通过井下工业性试验，论证了......