标题：Study on Strip Pillar Optimization and Stress Analysis of Deep Mining
作者：Chen Juntao; Guo Weijia; Yin Liming; Wu Chuanqiang
作者机构：[Chen Juntao; Guo Weijia; Yin Liming] Shandong Univ Sci & Technol, State Key Lab Mine Disaster Prevent & Control, Qingdao 266590, Shandong, Peoples R 更多
会议名称：3rd International Workshop on Mine Hazards Prevention and Control
会议日期：NOV 19-21, 2013
来源：3RD INTERNATIONAL WORKSHOP ON MINE HAZARDS PREVENTION AND CONTROL
关键词：Strip mining; Stability; Abutment stress; Mining width
摘要：The mining and reserved size of strip pillar are the key to pillar stability. Based on actual geological data in Tangkou coalmine, mining and reserved size of strip pillar were reasonably optimized, obtaining that the strip mining width was proportional to mining depth of inadequacy mining under same surface subsidence coefficient. The optimized strip pillar movement was simulated in three dimensional physical simulation test bed. The test results indicated that there is little stress change at the beginning of mining, then the pillar stress increases by non-linear fluctuation in accordance with actual measurement analysis, which verified the optimization rationality of mining and reserved pillar.