摘要
针对塔山煤矿3条1070大巷之间宽煤柱留设造成煤炭资源巨大浪费的现状,采用FLACK3D数值模拟软件对不同水平地应力下的1070大巷在不同动压系数垂直应力影响下的巷间煤柱的合理宽度进行模拟探究,从煤柱塑性区发育及应力变化角度分析煤柱稳定性,结果表明3条1070大巷合理巷间煤柱宽度不应少于20 m。
Based on the present situation that Tashan mine sets wide chain pillar leading to coal wasted serious, made research on the rational chain pillar of different horizontal crustal stress panel roadways disturbed by different coefficient vertical stress using FLACK3D numerical simulation software. Studied the ability of pillar by plastic zone change and stress change. The result shows the rational width chain pillar shoud be at least 20 meters.
作者
王贵文
冯国瑞
郭军
任玉琦
WANG Gui-wen1,2, FENG Guo-rui1,2, GUO Jun1,2, REN Yu-qi1,2(1. College of Mining Technology, Taiyuan University of Technology, Taiyuan 030024, China ; 2. Research Center of Green Mining Engineering Technology in Shanxi Province, Taiyuan 030024, Chin)
出处
《煤炭技术》
CAS
2018年第8期36-38,共3页
Coal Technology
关键词
巷间煤柱
数值模拟
塑性区
chain pillar
numerical simulation： nlastic zone
