低位综放开采顶煤放出的散体介质流理论与应用  

The loose medium flow field theory and its application on the longwall top-coal caving

作　　者：王家臣[1] 富强[2] 

机构地区：[1]中国矿业大学北京校区,北京100083 [2]天地科技股份有限公司开采所事业部,北京100013

出　　处：《煤炭学报》2002年第4期337-341,共5页Journal of China Coal Society

基　　金：国家自然科学基金重点资助项目 (5 973 40 90 )

摘　　要：由于放煤口布置方向的差异 ,放矿椭球体理论的适用条件与低位放煤综放开采的放煤过程有本质差异 ,因此基于模拟试验、FLAC计算、离散元模拟计算和现场观测 ,提出了散体介质流理论模型 ,揭示了低位综放开采中顶煤流动与放出的真实过程 。Because of the different distributions of running coal windows, there is a basic difference between the condition of the running ore ellipse ball and the running top coal process of top coal caving. The paper establishes a loose medium flow field theory on running top coal. It shows the true process of top coal flow on longwall top coal caving. This theory has been used to calculate the running coal technique and parameters in situ.

关 键 词：放顶煤 放煤规律 散体介质流 离散元 综放开采 FLAC计算 

分 类 号：TD823.49[矿业工程—煤矿开采]