摘要
深井三软煤巷是地压大围岩变形剧烈的一类极难维护回采巷道。分析该类巷道围岩的层状赋存特点及软弱破碎条件，提出加固帮角控制围岩稳定、高阻让压支护限制围岩变形和强化顶板保证安全的支护原理，并研究了合理的锚杆支护技术和帮顶锚固方式，包括顶板全长树脂锚固锚带网支护与两帮角小孔径加长树脂锚固可拉伸锚杆支护技术。
The bolting support principle is introduced to support roadways in extremely soft seams of deep coal mine. The maintenance of surrounding rock is controlled by reinforcing two side walls and angles. The deformation of surrounding rock is limited with highresistance and yielding support, the safety is ensured through strengthening the roof. Ended with an engineering instance, a new kind of successful supporting technology is introduced. The roof is reinforced using full column bonded bolts and two side walls and angles are strengthened using partialcolumn bonded bolt with extensible rods.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
1999年第4期437-440,共4页
Chinese Journal of Rock Mechanics and Engineering
关键词
深井
极软煤层
回采巷道
锚杆支护
deep mine, extremely soft coal seam, roadway, bolting support
