空巷及残采煤柱对巷道围岩稳定性的影响
李雪峰
（山西陵川崇安关岭山煤业有限公司，山西 陵川 048300）
摘要： 采用数值模拟方法对空巷及不同宽度残采煤柱对围岩稳定性的影响进行研究，结果表明：巷道与空巷交叉时，
距离交叉点0~5 m 范围内围岩塑性破坏明显，需采取相应的加强支护措施；煤柱内存在明显的应力集中现象，空巷两侧
围岩垂直应力呈现不对称分布，煤柱两侧为空巷且煤柱宽度小于8 m时，煤柱内破坏严重或应力集中现象明显，应采取
相应的加强支护措施；煤柱宽度大于8 m时，煤柱内外应力差别较小，采用正常的支护方案。
关键词： 残煤复采；空巷；煤柱宽度；应力分布
中图分类号： TD353     文献标志码： A     文章编号： 2095-0802-(2022)06-0052-03
Influence of Abandoned Roadway and Remnant Mining Coal Column on Stability of Roadway
Surrounding Rock
LI Xuefeng
(Lingchuan Chong'an Guanlingshan Coal Industry Co., Ltd. of Shanxi, Lingchuan 048300, Shanxi, China)
Abstract: The numerical simulation method was used to study the influence of abandoned roadway and remnant mining coal
column with different widths on the stability of surrounding rock. The results show that when the roadway and abandoned roadway
intersect, the plastic failure of surrounding rock is obvious within 0-5 m from the intersection point, and corresponding support
measures need to be taken. There is obvious stress concentration in the coal pillar, and the vertical stress of the surrounding rock
on both sides of the abandoned roadway presents asymmetric distribution. When there are abandoned roadways on both sides of
the coal pillar and the width of the coal pillar is less than 8 m, the damage in the coal pillar is serious or the stress concentration
is obvious, so corresponding support measures should be taken. When the width of the coal pillar is greater than 8 m, the stress
difference inside and outside the coal pillar is small, and the normal support scheme is adopted.

Key words: repeated mining of residual coal; abandoned roadway; coal pillar width; stress distribution