饱和软土敏感环境地铁车站的盾构法施工技术方案
刘洪波吴迪
Shield Tunneling Scheme for Metro Station Construction in the Sensitive Environment of Saturated Soft Soil
LIU HongboWU Di
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作者信息:上海申通地铁集团有限公司技术中心，201103，上海
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Affiliation:Technical Center of Shanghai Shentong Metro Group Co., Ltd., 201103, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2020.05.028
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中图分类号/CLCN:U455.43
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栏目/Col:施工技术
摘要:
通过梳理国内外盾构法地铁车站发展现状，对上海典型软土地区采用盾构法施工地铁车站的关键问题及技术方案进行了探讨。根据上海超大客流的实际情况和国内既有规范要求，盾构法施工车站的消防疏散设计与车站规模之间的矛盾是需要重点考虑的问题，而车站的建筑布局方案是解决问题的关键。基于单圆盾构、三圆盾构及类矩形盾构，提出了四种车站断面设计思路。还根据国内外消防规范的主要区别，提出了相应的结构设计要点和施工控制策略。
Abstracts:
Based on the development of metro stations built with shield tunneling in foreign countries, the key problems and technical schemes for metro stations constructed by shield tunneling method in soft soil areas of Shanghai are discussed. According to the practical situation of the super passenger flow in Shanghai rail transit and the existing regulations in China, the contradictions between the station fire excavation design and the station scale should be emphasized, in which the architectural layout plan could possibly be the main solution. According to the forms of single circle shield, three-circle shield and quasi-rectangular shield, four station section design schemes are proposed. Finally, based on the differences in fire codes at home and abroad, corresponding structural design points and construction control strategies are proposed.
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