摘要
针对深部矿井窄煤柱掘巷和支护困难的问题,结合某深部矿井在准备开采E1305工作面时因计划复用的上区段工作面E13065巷出现坍塌垮落,破坏严重的工程背景。提出采用在E13065巷实体煤侧新掘巷道留设小煤柱护巷进行围岩控制,应用理论分析,数值模拟和现场实测的研究方法,得到合理的煤柱宽度,且成功应用于E1305工作面的工程实施。合理安全高效的生产提高了资源利用率。
Aiming at the problems of narrow coal pillar tunneling in deep mines,coal body crushing and difficult support,combined with a deep mine when preparing to mine E1305 face due to collapse and collapse of E13065 lane in the upper section working face planned to be reused,serious damage Engineering background.It is proposed to use small coal pillars to protect the surrounding rock in the newly excavated roadway on the solid coal side of the E13065 roadway.The theoretical analysis,numerical simulation and field measurement research methods are used to obtain a reasonable coal pillar width and successfully applied to the E1305 working face.Reasonable,safe and efficient production improves resource utilization.
作者
曹海岗
CAO Hai-gang(Guojiawan Coal Mine Branch,Yulin Shenhua Co.,Ltd.,Yulin 719000,China)
出处
《煤炭技术》
CAS
北大核心
2021年第6期55-58,共4页
Coal Technology
关键词
临空区域
煤柱宽度
数值模拟
area next to goaf
width of coal pillar
numerical simulation
