摘要
研究目的:盾构法隧道的内部结构是隧道工程的重要组成部分,对隧道内径尺寸、施工进度、工程投资均有影响,尤其是采用盾构法修建的公轨合建隧道。本文以武汉市三阳路长江隧道为背景,对盾构法隧道的内部车道结构及烟道板结构的受力特征,主要施工工艺、方法及其优缺点进行分析、比选。研究结论:(1)现浇内部车道结构方案在防水能力、力学性能、工程造价等方面优势明显,推荐采用现浇方式;(2)烟道板采用预制弧形预制板方案便于施工及质量控制,在运营期冲淤荷载下的受力状态较好,推荐采用预制方式;(3)本文的分析可为今后的大型公轨合建盾构隧道工程提供一定的理论依据及工程借鉴。
Research purposes： The internal structure of the shield tunnel is an important part of tunnel engineering, affecting the shield diameter, the construction schedule and investment, especially the road -metro shield tunnel. Based on the Sanyang road Yangtze River tunnel, the mechanics characteristic, the main construction technology, methods and their advantages and disadvantages of the internal structures and the flue sheet of tunnel are analyzed and compared in the paper. Research conclusions： （ 1 ） With obvious advantages on waterproof ability, mechanicsproperty and investment, the cast- in- situ method is recommended. （2）Prefabricated arc slab flue sheet is convenient for quality control and the stress state is good under the scour and silting - up condition in the operation, the flue sheet should be prefabricated. （3） The analysis can provide theoretical evidences and references for the large road - metro shield tunnel in future.
出处
《铁道工程学报》
EI
北大核心
2013年第12期57-63,共7页
Journal of Railway Engineering Society
关键词
公轨合建
盾构法隧道
内部结构
road -metro shield tunnel
shield tunnel
internal structures
