摘要
燕子山煤矿8204工作面煤柱留设宽度不合理,存在区段回风顺槽片帮、网兜现象,通过公式计算与模型模拟方法进行煤柱留设宽度优化,综合分析确定区段煤柱宽度为10 m,既可以起到支护效果,也能避免顶板片帮、网兜,保证工作面两侧安全回采。
The width of coal pillar in the 8204 working face of Yanzishan Coal Mine is unreasonable, and there exists the phenomenon of slotting and net pocket in section return air channel. The width of coal pillar is optimized by formula calculation and model simulation, and the width of section coal pillar is determined to be 10 m by comprehensive analysis. It can not only play the supporting effect, but also avoid the roof slope and net pocket, and ensure the safe mining on both sides of the working face.
作者
张燕鹏
Zhang Yanpeng(Jinneng Holding Coal Industry Group Yanzishan Mine,Shanxi Datong 037001)
出处
《山东煤炭科技》
2023年第1期32-34,37,共4页
Shandong Coal Science and Technology
关键词
采煤
煤柱
宽度
优化
coal mining
coal pillar
width
optimization
