摘要
朱家岩隧道进口段岩土稳定性差、地形坡度大,成洞困难,施工中采用长管棚支护进行预加固处理.对长管棚支护参数、注浆参数、施工工艺进行了介绍.实践证明:应用长管棚超前加固朱家岩隧道进口段是成功的,保证了施工安全、缩短施工工期、保证了工程质量.
The poor wall rock stability and steep grade of the exit section of Zhujiayan tunnel make tunneling hard, thus the supporting technology is applied to pre-reinforced measure. The long pipe ＆ shed designing parameters, casting param- eters and construction technic are introduced. It is proved to be successful to apply long pipe ＆ shed pre-reinforced sup- porting technology to treat Zhujiayan tunnel exit section, making the tunnel secure, reducing the construction time and ensuring its quality.
出处
《华东交通大学学报》
2008年第1期28-31,共4页
Journal of East China Jiaotong University
关键词
隧道工程
不良地质
长管棚支护
施工工艺
tunnel engineering
poor geological condition
long pipe ＆ shed supporting
construction technigue
