摘要
以冀中能源邢台章村矿4224采区为研究对象,通过现场调研、理论计算及数值模拟等手段,对该矿2#煤层沿空留巷围岩稳定控制技术进行了研究,提出了无人工充填巷旁支护体的护巷方式,以补打锚索、架设单体支柱等方法作为加强支护的手段,并通过在上帮挂网的方式有效阻止了矸石流入巷道。
4224 mining area in Jizhong Energy Xingtai Zhangcun Coal Mine is taken as the study object, combined with site investiga- tion, theoretical calculation and numerical simulation method, the roadway stability control technology for gob - side entl7 retaining in 2# coal mine is studied. The supporting method of no artificial filling roadside support body is proposed. Supplying anchor and erecting single pillars are used as means to strengthen the support. The waste rock is effectively prevented to flow into the roadway through hang- ing net on upper roadway - side.
出处
《煤矿安全》
CAS
北大核心
2013年第9期103-106,共4页
Safety in Coal Mines
关键词
沿空留巷
巷旁支护
巷内支护
支护阻力
数值计算
gob- side entry retaining
roadside support
roadway- in support
support resistance
numerical calculation
