摘要
Abstract
According to-650m levels of panbei mine of huainan mining group (23 m)ground elevation east fortune, lithology,roadway damage and the reason analysis,combined with the tunnel length of service,using spray,depth hole grouting,anchor bars (roadway and the reinforced u-shaped tent stent for reinforcement to improve the bearing capacity)support scheme,the repair scheme application has obtained obvious effect,repair and maintenance support for soft rock tunnel excavation scheme provides reference.关键词
软岩巷道/支护技术/U型棚支架加固/深浅孔注浆Key words
soft rock roadway/supporting technology/u-shaped tent support reinforcement/deep and shallow hole grouting分类
矿业与冶金
