摘要
针对山西焦煤集团辛置煤矿2-208煤柱回收工作面回采巷道支护困难等问题,采用理论分析和数值模拟方法进行分析探讨;数据表明,煤柱工作面回采期间上覆岩层的垮落高度远大于其他普通工作面;对工作面回采巷道支护方案进行设计和优化,加固超前支护和过空巷期间巷道支护;现场应用及观测表明,支护效果良好。
By theoretical analysis and numerical simulation, the paper explored roadway support difficulties and other issues in recovery working face of 2-208 coal pillar, Xinzhi Colliery, Huozhou Coal and Electricity Group Co., then designed and optimized the support scheme of working face mining roadway, which proved good support.
作者
李晓飞
Li Xiaofei(Xinzhi Colliery, Huozhou Coal and Electricity Group Co., Ltd., Huozhou, Shanxi 031412)
出处
《江西煤炭科技》
2019年第3期7-10,共4页
Jiangxi Coal Science & Technology
关键词
区段煤柱
回收工作面
厚煤层
数值模拟
section coal pillar
recovery working face
thick coal seam
numerical simulation
