摘要
以神东乌兰木伦煤矿回采巷道为工程实例,运用理论计算和数值模拟等方法,拟对浅埋煤层条件下窄煤柱沿空巷道围岩的应力场和位移场进行分析探讨;最终确定窄煤柱的合理宽度为3 m,能够确保巷道的使用安全;可对浅埋煤层沿空巷道窄煤柱留设提供一定的经验借鉴。
Taking the mining roadway of Shendong Ulan Mulun Colliery as an engineering example,the paper analyses and discusses the stress field and displacement field of the surrounding rock of the narrow coal pillar gob-side roadway under the condition of shallow coal seam by using theoretical calculation and numerical simulation methods,and determines the reasonable width of the narrow coal pillar is 3 m,which can ensure the safe use of the roadway and provide some experience and reference for the narrow coal pillars in the gob-side roadway in the shallow seam.
作者
孟瑞
Meng Rui(Shangwan Colliery of Shendong Coal Group Co.,National Energy Group Co.,Ltd.,Ordos,Inner Mongolia 017209)
出处
《江西煤炭科技》
2022年第4期11-13,17,共4页
Jiangxi Coal Science & Technology
关键词
浅埋煤层
沿空掘巷
窄煤柱宽度
理论计算和数值模拟
支护方案
shallow seam
gob-side entry driving
narrow coal pillar width
theoretical calculation and numerical simulation
supporting scheme