摘要
介绍了襄渝二线铁路胡安段XYS-02标段新砦沟隧道在现场实际施工中运用明洞暗做施工工艺,克服施工中客观存在的不利因素,确保施工安全和进度的具体运用实例,总结了在软弱薄上覆层地质条件下的暗挖施工特点和注意事项,得出了有益的经验结论。
This paper introduces the concrete example of using open tunnel subsurface excavation in practical field construction of Xinzhaigou tunnel at XYS-02 section in Hu-An section of Xiang-Yu railway line No. 2 to conquer the disadvantages existed in the construction and to ensure construction safety and progress, summarizes characteristics and notices of subsurface excavation construction under geological condition of soft upper coating, and gains some useful experience.
出处
《山西建筑》
2008年第4期325-326,共2页
Shanxi Architecture
关键词
明洞暗做
上覆层
承载拱
弱爆破
超前注浆小导管
护拱
open tunnel subsurface excavation, upper coating, bearing arch, weak blasting, lead grouting ductule, umbrella arch
