大倾角煤层开采覆岩移动及应力变化数值模拟分析  

Numerical Simulation Analysis of Overburden Movement and Stress Change during Mining in Steep Seam

作　　者：赵龙飞 Zhao Longfei(Taiyuan Coal Gasification Longquan Energy Development Co.,Ltd.,Taiyuan Shanxi 030303)

机构地区：[1]太原煤气化龙泉能源发展有限公司,山西太原030303

出　　处：《山西冶金》2021年第4期145-146,163,共3页Shanxi Metallurgy

摘　　要：采用大采高综采方式是对大倾角煤层广泛的开采方式,由于受到煤层倾角的影响,使得覆岩的移动及应力变化与水平开采时具有较大的差异。采用离散元仿真分析的方式对倾斜煤层开采的顶底板位移及应力变化进行分析,从而可知覆岩的位移及应力变化,为大倾角煤层的开采提供技术参考,提高煤层开采支护的稳定性。Fully mechanized mining with large mining height is a widely used mining method for coal seam with large dip angle.Due to the influence of coal seam dip angle,the movement and stress change of overburden rock are quite different from that of horizontal mining.The displacement and stress changes of roof and floor in inclined coal seam mining are analyzed by using discrete element simulation analysis,so as to know the displacement and stress changes of overburden rock,which provides technical reference for mining of large inclined coal seam,and improves the stability of coal seam mining support.

关 键 词：大倾角 大采高综采 位移 应力 稳定性 

分 类 号：TD325[矿业工程—矿井建设]