急倾斜煤层煤柱极限强度及倾角效应研究  

Study on Ultimate Strength and Inclination Effect of Pillar in Steeply-inclined Coal Seam

作　　者：范任重 Fan Renzhong(Bofang Colliery Branch,Shanxi Lanhua Science and Technology Venture Co.,Ltd.,Jincheng,Shanxi 048400)

机构地区：[1]山西兰花科技创业股份有限公司伯方煤矿分公司,山西晋城048400

出　　处：《江西煤炭科技》2025年第1期51-54,共4页Jiangxi Coal Science & Technology

摘　　要：煤柱的稳定性是大倾角煤层长壁工作面安全高效开采的基础,在系统分析大倾角煤层采石场围岩变形失稳规律的基础上,建立了大倾角煤层多区段开采的煤柱结构模型,探讨了煤层倾角、侧压系数、宽高比等因素对倾斜煤柱强度的影响。利用现场工程实例对理论分析的可靠性进行了检验,分析了倾斜煤层开采区段回风巷围岩控制的难点,证明了非对称围岩耦合支护是一种成功的支护强化技术。The stability of coal pillar is the foundation of safe and efficient mining of long-wall working face in steeply-inclined coal seam.By systematic analysis of the deformation and instability law of the surrounding rock in the quarry of steeply-inclined coal seam,the coal pillar structural model in multi-section mining of steeply-inclined coal seam has been established,and the influence of the inclination angle,the coefficient of lateral pressure,and the aspect ratio of coal seam on the strength of inclined coal pillar is explored,the reliability of the theoretical analysis is tested by using on-site engineering examples,and the difficulties in controlling the surrounding rock of the ventilation roadway in the section of inclined coal seam mining are analyzed,proving that the asymmetric surrounding rock coupling support is a successful support reinforcement technology.

关 键 词：大倾角煤层 区段煤柱 倾角效应 围岩控制 

分 类 号：TD823.213[矿业工程—煤矿开采]