孤岛工作面覆岩结构及煤柱宽度研究
薛福明
（山西方山金晖凯川煤业有限公司，山西 方山 033100）
摘要： 为了解决小煤柱沿空掘巷围岩变形控制难的问题，以山西方山金晖凯川煤业有限公司5110 工作面为研究背
景，通过理论分析结合数值模拟的方法对煤柱宽度对围岩稳定性的影响进行了一定的研究，发现随着煤柱宽度的增加，
煤柱受到的垂直应力及水平应力均逐步增大，随距煤帮距离的增加呈现先增大后减小的趋势。
关键词： 孤岛工作面；数值模拟；垂直应力；水平应力
中图分类号： TD322     文献标识码： A     文章编号： 2095-0802-(2021)04-0052-03
Study on Overlying Rock Structure and Coal Pillar Width in Isolated Working Face
XUE Fuming
(Fangshan Jinhui Kaichuan Coal Industry Co., Ltd. of Shanxi, Fangshan 033100, Shanxi, China)
Abstract: In order to solve the difficult problem of surrounding rock deformation control of gob side entry driving with small coal
pillar, based on the research background of 5110 working face of Fangshan Jinhui Kaichuan Coal Industry Co., Ltd. of Shanxi, this
paper studied the influence of coal pillar width on surrounding rock stability through the method of theoretical analysis combined
with numerical simulation. It is found that with the increase of coal pillar width, the vertical stress and horizontal stress of coal
pillars increase gradually, and with the increase of the distance from the coal wall, it first increases and then decreases.

Key words: isolated working face; numerical simulation; vertical stress; horizontal stress