Treatment of Roof Falling Accident in Construction of Water Energy Storage Plant in Ming Tomb,BeijingYang Chunlai1-3
Practice on Liberation of No.2311 Firing Area with Nitrogen Injection in Caili Coal MineWang Xianzhong4-5
Treatment of Surrounding Wall Falling and Drilling Bit Jammed in West Mine Ventilation Shaft Boring at Longdong Coal Mine朱友恩, 张兆旭, 周遵夫12-13