Stress distribution rule of roadway affected by overhead mining in gently inclined coal seams group

摘要：

In light of the severe deformation and destruction of the district raise tunnel in the mining area at the northern part of the Lubanshan colliery, by the theoretic analysis and numerical simulation, both the mining stress distribution in seams group and the deformation and destruction mechanism of floor district raise were investigated. The results show that, at the maximum vertical distance of 40 m, the abutment stress has an influence on the recovery of 2 ＃ and 3＃ coal seam and 8＃ coal seam at distance of 30 m. As a result, the recovery of 8＃ is rather than those of 2＃ or 3＃ coal seam, which contributes to the deformation and destruction of the district raise surrounding rock. The major factors affecting the abutment stress include the mining depth, mining height, residual gob space, adjacent working faces and short spacing coal seam recovery.

关键词： coal seams group stress distribution district raise surrounding rock deformation and destruction abutment stress

作者: KANG Qin-rong TANG Jian-xin HU Haiv ZHANG Wei-zhong

作者单位: College of Resource and Environmental Sciences, Chongqing University, Chongqing 400030, China State College of Resource and Environmental Sciences, Chongqing University, Chongqing 400030, China School

会议类型: 国际会议

会议名称: 2011年国际矿山测量学术讨论会

会议地点: 河南焦作

会议语种:英文

页码: 529-535

在线出版日期: 2011-06-18（万方平台首次上网日期，不代表论文的发表时间）