摘要
以某矿5211工作面为工程背景,建立了大采高条件下沿空留巷顶板运动的力学模型,计算巷旁支护体支撑阻力,分析了大采高沿空留巷围岩稳定性影响因素,提出该条件下沿空留巷工作面顶板运动特点,并针对性地提出巷内基本支护采用锚杆支护体系。
Sets 5211 longwall face in certain mine as a background and builds a mechanical model of roof′ s movement in roadway to calculate the support resistance that provided by bodies besides gob-side entry retaining. Analyzes influence factors of surrounding rocks in gob-side entry retaining according to numerical simulation, determines support characteristics of gob-side entry retaining.
出处
《煤炭技术》
CAS
北大核心
2015年第11期70-73,共4页
Coal Technology
关键词
沿空留巷
大采高
巷旁支护
数值模拟
gob-side entry retaining
large mining height
support besides gob-side entry retaining
numerical simulation
