保护煤柱掘进对邻近风井的影响研究  

Study on the Impact of Protective Coal Pillar Mining on Adjacent Air Shafts

作　　者：李艺超 LI Yichao(Yucheng Coal Mine,Jineng Holding Group Qinxiu Company,Jincheng 048000,China)

机构地区：[1]晋能控股集团沁秀公司岳城煤矿,山西晋城048000

出　　处：《煤》2025年第2期39-43,共5页Coal

摘　　要：为了分析某矿保护煤柱巷道掘进对临近南回风井的影响,通过理论分析、数值模拟的方法,分析了保护煤柱巷道掘进后临近风井及围岩的稳定性。研究结果表明,南风井受西南部2号辅运上山影响切向应力最大值为3.2e-7 MPa,理论计算可知,八采区西南部上山中距离南风井最近的西南部2号辅运上山对南风井基本无影响,数值模拟与理论分析相符合,研究方法可为后续压煤开采提供资料参考。In order to analyze the impact of the excavation of the protective coal pillar drift on the nearby south return air shaft,the stability of the surrounding rock and the nearby air shaft after the excavation of the protective coal pillar drift were analyzed by theoretical analysis and numerical simulation.The results show that the maximum tangential stress on the south air shaft affected by the No.2 auxiliary transport drift in the southwest is 3.2e-7 MPa.The theoretical calculation shows that the No.2 auxiliary transport drift in the southwest,which is the closest to the south air shaft in the southwest,has no significant impact on the south air shaft.The numerical simulation is consistent with the theoretical analysis,and the research method can provide reference for the subsequent coal mining under pressure.

关 键 词：巷道掘进 变形破坏 数值模拟 

分 类 号：TD822.3[矿业工程—煤矿开采] TD263[矿业工程—矿山开采]