石牙山隧道坍方治理  

Treatment of Shiyashan Tunnel Collapse

作　　者：潘晓马[1] 赵金锐[1] 

机构地区：[1]广东省公路勘察规划设计院,广州510507

出　　处：《广东公路交通》2007年第2期52-54,共3页Guangdong Highway Communications

摘　　要：在保证隧道施工安全的条件下,在洞内施作大角度长管棚,在管棚保护下施作超前注浆和隧道环向导管注浆,通过注浆,形成管棚以上约4m厚的承载拱作为护拱,再配合其它工程措施,安全通过塌方地段。For the safety of tunnel collapse construction , long pipe roof was constructed in the tunnel. The long pipe roof obliquity is relatively big. Under the protect of the long pipe roof, advance grouting and radial small duet grouting was constructed. After the grouting, one 4m - thiehness protecting shield was formed to bear the weight of tunnel top. By the assistant of other engineering measure, the tunnel collapse construction was completed successfully.

关 键 词：隧道坍方 长管棚 注浆技术 

分 类 号：U457.25[建筑科学—桥梁与隧道工程]