RESEARCH OF MECHANICAL MODEL AND NUMERICAL SIMULATION FOR FLOOR BURST
The horizontal stress in the floor of roadway plays an important role in rock burst. According to previous theories, a mechanical model is set up, where the dangerous coefficient of floor burst is initially given, and the distribution laws of horizontal stress rising and vertical stress reducing in the floor are calculated through numerical simulation. Throughout this study, it is concluded that the floor burst is seriously relevant to the following factors, i.e. the elastic modulus of rock, the thickness of soft rock in the floor, the horizontal tectonic stress, and the heave hard roof. As the dangerous coefficient of floor burst is more than or equal to 1, floor burst will happen with the influence of blast firing or roof breaking quickly. The conclusions pave the way of developing theories and taking measures to prevent and control floor burst.
XUE-FENG XU LIN-MING DOU ZONG-LONG MU XIN-WEI LU
State Key Laboratory of Coal Resource and Mine Safety, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China School of Mines, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
605-612
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）