象山隧道拓宽改造工程方案研究  

Study on excavation schemes of Xiangshan tunnel extension

作　　者：臧万军[1,2] 王钊[1,2] 

机构地区：[1]福建工程学院土木工程学院,福建福州350118 [2]地下工程福建省高校重点实验室,福建福州350118

出　　处：《福建工程学院学报》2016年第6期526-531,共6页Journal of Fujian University of Technology

基　　金：福建省自然科学基金面上项目(2016J01205)

摘　　要：对象山隧道拓宽改造工程方案进行研究。对比增建隧道、大开挖道路、原位拓宽3种扩建形式,综合分析象山隧道工程现状、拓宽改造基本原则和影响因素,提出原位拓宽形式的合理性。分析原隧道两侧小洞各拓宽成3车道、保留中间两个大洞和原隧道两侧大洞连通小洞各改建为一个大洞两种原位拓宽改造方案,从结构受力、营运能力、施工难度、交通影响和经济性等方面进行比选,确定可行性方案。对连拱隧道拓宽改造施工提出建议,为今后类似的隧道拓宽改造工程提供参考。The excavation schemes of Xiangshan tunnel extension project were researched. The in-situ extension was found to be more reasonable than constructing new tunnels and cutting excavation by comprehensive analysis of the geographical condition,the basic principle and the influential factors of tunnel extension. Two excavation schemes were compared in mechanics characteristic,operation（traffic） capacity,construction difficulty and risk,traffic influence and economy. Several suggestions on the construction of multi-arch tunnel extension projects were proposed,which can provide reference for similar projects in the future.

关 键 词：连拱隧道 拓宽改造 方案比选 

分 类 号：U452.25[建筑科学—桥梁与隧道工程]