摘要
为解决采厚对支承压力分布的影响问题,以新巨龙煤矿1301N工作面为背景,采用FLAC3D软件模拟支承压力在不同采厚下分布规律。通过对3、6、9 m采厚下工作面走向及倾向支承压力分布规律进行对比。研究结果表明:在倾斜方向和走向方向支承压力峰值点及应力集中系数随采厚增大而降低;倾斜方向峰值点向煤柱深处转移,走向方向上极限平衡区和应力增高区长度及支承压力平均应力值均增大。
In order to solve the problem of the effect of mining thickness on the abutment pressure distribution, the working face of 1301N in new Julong Mine was taken as background, the distribution of abutment pressure under different exploiting thickness through FLAC3D was adopted. By contrasting the abutment pressure distribution for tendency of the working face with 3,6 and 9 m thickness of the coal, the result showed that stress concentration area of tendency decreased with the increase of the thickness of coals and the peak point on tendency transferred to the deep coal pillar, the distance of limit equilibrium zone and the increasing stress area and the average stress value increased.
出处
《煤炭与化工》
CAS
2015年第8期17-21,共5页
Coal and Chemical Industry
基金
国家自然科学基金项目(51004109)
煤炭资源与安全开采国家重点实验室开放课题(SKLCRSM11KFB05)
关键词
支承压力
采厚
走向
倾斜方向
abutment pressure
exploiting thickness
tendency
inclination
