软岩巷道修整中锚注一体化技术应用研究  

Research on the Application of Integrated Anchoring and Grouting Technology in the Repair of Soft Rock Tunnels

作　　者：王智儒 Wang Zhiru(Shanxi Fenxi Zhongxing Coal Industry Co.,Ltd.,Jiaocheng Shanxi 030500)

机构地区：[1]山西汾西中兴煤业有限责任公司,山西交城030500

出　　处：《山西冶金》2023年第5期236-238,共3页Shanxi Metallurgy

摘　　要：某矿+630 m轨道运输石门围岩为软岩并采用锚网索方式支护围岩,支护完成后运输石门呈现出底鼓严重、围岩变形量大特点,给后续辅助运输、行人及通风等工作开展带来较大制约。因此,依据轨道运输石门现场条件,将锚注一体化技术应用到巷道围岩修整中,并对采用的支护材料、修整技术方案等进分析阐述。现场应用后,轨道运输石门围岩变形量大问题得以彻底解决,修整150 d后围岩变形基本稳定,其中底板、顶板及巷帮最大变形量分别为35 mm、15 mm、49 mm,轨道运输石门采用锚注一体化技术修整后可满足后续使用需要。研究成果可为其他矿井软岩巷道围岩修整工作开展提供经验借鉴。The surrounding rock of+630 m rail transportation crosscut is soft rock and is supported by anchor mesh cables.After the support is completed,the transportation crosscut exhibits severe floor heave and large deformation of the surrounding rock,which poses significant constraints on subsequent auxiliary transportation,pedestrians,and ventilation work.Based on the on-site conditions of the rail transportation crosscut,the integrated anchoring and grouting technology is applied to the repair of tunnel surrounding rock,and the supporting materials and repair technology schemes used are analyzed and elaborated.After on-site application,the problem of large deformation of the surrounding rock of the rail transportation crosscut has been completely solved.After 150 days of repair,the deformation of the surrounding rock is basically stable,with the maximum deformation of the bottom plate,top plate,and roadway side being 35 mm,15 mm,and 49 mm,respectively.The rail transportation crosscut can meet subsequent usage needs after being repaired using the integrated anchoring and grouting technology.The research results can provide experience and reference for the repair of soft rock roadway surrounding rocks in other mines.

关 键 词：软岩巷道 锚注一体化技术 围岩支护 中空锚杆 围岩加固 

分 类 号：TD322[矿业工程—矿井建设]