摘要
老空水对巷道掘进危害极大,通过F2506掘进迎头施工钻孔探防2502老空区动水,消除老空区积水威胁,保障F2506切眼安全掘进。
The gob water has a great harm to the excavation of roadway, through drilling the bores in the heading of F2506 to explore the gob water of 2502 working face, eliminated the threat of gob water, and guaranteed the safe driving of F2506 starting cut.
出处
《山东煤炭科技》
2015年第10期138-139,共2页
Shandong Coal Science and Technology
关键词
老空水
钻探
探防
gob water drilling exploration
