Shanxi Majunyu Coal Coke Co., Ltd

针对马军峪煤矿9+10号煤回采期间存在巷道围岩变形的问题，马军峪煤矿拟采用小煤柱沿空掘巷，通过理论分析和数值模拟的方法，确定沿空掘巷切顶合理参数及最优煤柱宽度为5 m，现场应用结果表明，留设5 m小煤柱后掘巷，实体煤帮变化量及顶板下沉量、切顶较非切顶侧均降低，效果良好。该研究为类似条件下的小煤柱沿空掘巷技术提供借鉴。

Aiming at the problem of roadway surrounding rock deformation during the mining of No.9 + 10 coal seam in Majunyu Mine, small coal pillar gob-side entry driving was adopted. Through theoretical analysis and numerical simulation, the reasonable parameters of roof cutting in gob-side entry driving and the optimal coal pillar width were determined to be 5 m. The field application results showed that after leaving 5 m small coal pillar, the variation of solid coal side and roof subsidence were reduced, and the roof cutting was lower than that of non-roof cutting side, and the effect was good. This study provided a reference for the technology of small coal pillar gob-side entry driving under similar conditions.

裴雁飞，李永军. 马军峪矿9+10号煤沿空掘巷关键参数研究[J]. 煤炭与化工, 2024, 47(7): 28-31，35..

Pei Yanfei，Li Yongjun. Study on key parameters of gob-side entry driving in 9+10#coal seam of Majunyu Mine. CCI, 2024, 47(7): 28-31，35..