铁道标准设计2017，Vol.61Issue(1)：94-98,99,6.DOI:10.13238/j.issn.1004-2954.2017.01.020
偏压隧道洞口进洞方式实践与探讨
Practice and Discussion on Methods for Tunnel Entrance under Asymmetrical Load
白国权1
作者信息
- 1. 云南省交通规划设计研究院，昆明 650011
- 折叠
摘要
Abstract
In the construction process of mountain highway, the route is often inevitable to pass through steep and inclined mountain. Moreover, if tunnels are located in such area, the tunnel entrance might be subject to asymmetrical load. It is necessary to look for methods to allow entering into the tunnel in a safe, rapid, economical and environmental protecting manner. With reference to the treatment methods employed for Yunnan highway tunnels, this paper proposes four typical examples for discussion. The results show that, for separated tunnel, the three construction methods ( open-cut method, cap and excavation method, back pressure & back fill method) have their respective advantages, disadvantages and applicable conditions; for multiple-arch tunnel, in case of asymmetrical load with different structures, stagger portal is recommended. The treatment methods and analysis conclusions introduced in this paper may provide reference for other similar projects.关键词
公路隧道/偏压洞口/处理/实践Key words
highway Tunnel/In asymmetrically loaded case/Treatment methods/Practice分类
交通工程引用本文复制引用
白国权..偏压隧道洞口进洞方式实践与探讨[J].铁道标准设计,2017,61(1):94-98,99,6.
