文献类型：期刊文献

英文题名：Assessment of ground instability risk of lower seam longwall panels during crossing overlying remnant pillars

作者：Pan, Ruikai Li, Yong Wang, Hui Xu, Youlin Yang, Hongyun

第一作者：Pan, Ruikai

通信作者：Pan, RK[1];Li, Y[1];Pan, RK[2];Li, Y[2]

机构：[1]Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China;[2]Chongqing Univ, Sch Resource & Safety Sci, Chongqing 400044, Peoples R China;[3]Guizhou Inst Technol, Coll Min Engn, Guiyang 550003, Peoples R China;[4]Chongqing Jiaotong Univ, Coll Civil Engn, State Key Lab Mt Bridge & Tunnel Engn, Chongqing 400074, Peoples R China

第一机构：Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China

通信机构：corresponding author), Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China;corresponding author), Chongqing Univ, Sch Resource & Safety Sci, Chongqing 400044, Peoples R China.

年份：2020

卷号：7

期号：10

外文期刊名：ROYAL SOCIETY OPEN SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000582170600001)】；

基金：This research was supported by the Graduate Research and Innovation Foundation of Chongqing, China (CYB18032), the National Natural Science Foundation of China (51904043, 51774059, 51764010, 51874109), Guizhou Province Science and Technology Support Program, China ([2019]2861) and Guizhou Province Excellent Youth Training Plan ([2019]5674).

语种：英文

外文关键词：overlying remnant pillars; multiseam mining; ground instability; risk assessment; longwall mining

摘要：One of the most challenging safety problems is ground instability during crossing overlying remnant pillars (CORP). Ground instability not only causes injury to miners or fatalities, but also leads to interruptions in the mining operations and breakdowns in equipment. In this paper, 12 major parameters influencing the ground instability were firstly determined based on extensive international experience associated with CORP. The consequences of the ground instability were then assessed in terms of miners' health and financial losses. Afterwards, a practical method to assess the ground instability risk of lower-seam longwall panels during CORP was developed based on its probability and consequence. Finally, this method was successfully used to determine the best scheme for CORP of LW10-103 at Mugua coal mine. The main advantage of this method is that it enables mining engineers to easily use international experience for assessing the risk of ground instability and selecting reasonable supports during CORP.