定向长钻孔超前疏放顶板水技术在枣泉煤矿的应用
方俊,曹明,王继承
Application of Advance Dewatering Roof Water by Directional Long Borehole in Zaoquan mine
煤炭工程 . 2016, (7): 56 -59 .  DOI: 10.11799/ce201607018