STUDY ON UNSTABLE FAILURE OF ROCK MASS IN KEY ROUTE OF FAULT WATER INRUSH
Water inrush of the fault is a typical dynamical disaster in the coal mines, which is the instability failure process of the rock and coal under the action of mining and pressure water. In this paper, the simplified mechanical model of the critical path was established on water inrush of the fault in allusion to the spatial relation between the fault and plasticity region of the floor. The shortest distance from the fault to plasticity region of the floor was regarded as the key route of water inrush of the fault. The limit equilibrium theory was used to study the condition of the unstable failure of rock mass in key route. The shortest distance of the key route was obtained and the prepared critical width of anti-pillar was given for tater inrush of the fault. Meantime, the rule of water inrush under the impact of the fault parameters and coal-parameter was analyzed.
ZHONG-HUI CHEN LIANG SI ZHI-QING CAI GUAN-HAO XUE
School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, P.R.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
1393-1400
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）