摘要
基于综放开采,采空区冒落高度大、冒落形态复杂的特征,采用三维离散元程序3DEC模拟分析了综放工作面岩层不同垮断几何参数时的采空区覆岩冒落规律、岩梁运动趋势及其对采场可能带来的动载荷。研究结果为综放采场岩层控制和支护阻力确定提供了一定的参考。
Aiming at the characteristics of large falling height and complex falling configuration in full-mechanized caving mining, three-dimensional distinct element code-3DEC is employed to simulate felling rules of surrounding rock in gob, movement direction of rock beam and possible dynamic loading brought by it with different collapse geometry parameters in full-mechanlzed caving mining face. The research results provide reference for the rock stratum control and the confirmation of supporting resistance to some extent.
出处
《煤矿开采》
2007年第1期4-7,共4页
Coal Mining Technology
关键词
综放开采
岩层运动
失稳
动载荷
离散元
full-mechanized caving mining
rock stratum movement
rock failure
dynamic loading
distinct element