Pre-Grouting Operation at Changxin Limestone Excavation Face in Auxiliary Mine Shaft of Qujiang Mine王峰, 郑庆轩, 董敏琪1-3
Construction Management Mode and“Three Major Control”for Ground Freezing Metho d in East Ventilation Shaft of Liangbei Mine刘清华, 李功洲, 杨波, 张平忠, 范志伟4-8
Test and Application of Directional Breaking Blasting Technology in Very Soft Ro ck Mine Roadway乔志民9-11,32
