摘要
为了保证孤岛工作面安全开采和工作面回采巷道的稳定性,采用理论分析和数值模拟的方法对孤岛工作面沿空掘巷煤柱留设宽度进行研究。运用FLAC^(3D)数值模拟软件模拟了不同煤柱宽度下煤柱的垂直应力、塑性区和位移的变化规律,同时分析了巷道顶、底板的变形情况。
In order to ensure the safe mining of the island coal face and the FLAC3D stability of the mining roadway, theoretical analysis and numerical simulation method are used to study the width of the coal pillar for gob-side entry driving in the island coal face. The FLAC30 numerical simulation sofeware is used to simulate the vertical stress, plastic zone and displacement of coal pillar under different width of coal pillar, and analyze the deformation of roof and floor.
作者
段军
梁智广
岳洪辉
杨成华
DUAN Jun, LIANG Zhi-guang, YUE Hong-hui, YANG Cheng-hua(Research Mining of Institute, Inner Mongolia University of Science and Technology, Baotou 014010, Chin)
出处
《煤炭技术》
CAS
2018年第6期11-14,共4页
Coal Technology
关键词
孤岛工作面
沿空掘巷
煤柱宽度
island coal face
gob-side entry driving
width of coal pillar
