摘要
以义马常村煤矿煤层条件为基础,结合理论计算,利用UDEC离散元软件,对不同采厚条件下超前支承压力分布规律进行了模拟研究,结果表明:随采厚的增加,支承压力峰值变化不大,但峰值点向煤体内部迁移;支承压力极限平衡区宽度明显增大;支承压力峰值分布从点分布明显向区域分布变化。
Simulation study on distribution regularity of fore abutment pressure under different mining conditions was conducted according to the coal seam conditions in Yima Changcun Mine,on the basis of theoretical computation and by using UDEC discrete element software.The results showed that the peak value of abutment pressure did not change greatly with the increase of mining thickness,but the peak value point migrated into coal body;the width of limit equilibrium zone of the abutment pressure increased evidently;the peak value of abutment pressure markedly changed from point distribution to regional distribution.
出处
《矿业安全与环保》
北大核心
2008年第2期17-18,21,共3页
Mining Safety & Environmental Protection
