Changcun Mine, Shanxi Lu 'an Environmental Energy Development Co., Ltd.
Shanxi Provincial Science and Technology Resources and Large Instrument Open Sharing Center
College of Mining and Surveying Engineering, Hebei University of Engineering

窄煤柱在上区段采空区残余支承压力和回采工作面超前支承压力的双重影响下，会严重影响回采巷道围岩的稳定性。本文通过数值模拟，分析常村煤矿S3-7工作面在窄煤柱护巷回采过程中巷道围岩应力环境变化及围岩变形破坏特征。结果表明：随着工作面的推进，超前支承压力峰值呈增长趋势，在巷道实体煤侧深处约10 m处达到支承应力峰值，影响范围约55 m，在超前支承压力的影响范围内，呈现出先升高后下降再升高的趋势。该研究可为其他类似矿井提供借鉴。

Narrow coal pillar will seriously affect the stability of surrounding rock of mining roadway under the dual influence of residual abutment pressure of upper goaf and advance abutment pressure of working face. Through numerical simulation, the stress environment change and deformation and failure characteristics of surrounding rock of roadway in S3-7 working face of Changcun Mine during the mining process of narrow coal pillar roadway were analyzed. The results showed that with the advance of working face, the peak advance abutment pressure increased. The peak value of abutment stress was reached at about 10 m deep on the solid coal side of the roadway, and the influence range was about 55 m. Within the influence range of advance abutment pressure, it showed a trend of increasing first, then decreasing and then increasing. This study could provide reference for other similar mines.

陈宪伟1，石 媛2，吕 振3. 采动影响下巷道围岩应力分布及变形特征分析[J]. 煤炭与化工, 2023, 46(11): 14-17，24..

Chen XianWei1, Shi Yuan2, Lv Zhen3. Analysis on mine pressure distribution and deformation characteristics of roadway surrounding rock under mining influence. CCI, 2023, 46(11): 14-17，24..