Comprehensive Monitoring and Analysis on Dynamic Disaster Information of Lower Slicing Mining of Giant Thick Seam
In this paper, dynamic disaster information of lower slicing mining of giant thick seam was monitored comprehensively by microseismic monitorring system and stratas dynamic monitoring system, and the monitored information was analyzed comprehenddsively. The results show that when the lower slice of giant thick seam is mined, the main roof with strong follow-up characteristic is quasiarch structure, and the ground behavior of working face is not obvious; the layers on the top of the main roof is thick, and far away from the working face in high position, its movement has a significant lag effect and a longer period, and it generally will not cause damage to the shallow surrounding rock of the working face, but will result in large deep shocks (microseismic events with high energy), or shock bump; the ground behavior of working face has relationship with the high level microseismic events of layers in higher position, and in most cases, an apparent increasing trend of the ground behavior of working face occurs before microseismic events; occasionally, the apparent increasing trend of ground behavior of working face lags behind microseismic events.
Dynamic disaster Rock burst Micromicroseismic monitoring Stratas dynamic monitoring
SHI Yongkui HAO Jian
Key Laboratory of Mine Disaster Prevention and Control, Qingdao Shandong 266510,China
国际会议
2010 International Conference on Mine Hazards Prevention and Control(第二届矿山灾害预防与控制国际学术会议 ICMHPC)
青岛
英文
518-524
2010-10-15（万方平台首次上网日期，不代表论文的发表时间）