| 邻近既有地铁隧道的风井改建基坑工程设计 |
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| 引用本文： | 凌辉.邻近既有地铁隧道的风井改建基坑工程设计[J].中国市政工程,2012(3):69-71,109. |
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| 作者姓名： | 凌辉 |
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| 作者单位： | 上海市城市建设设计研究总院,上海,200125 |
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| 摘 要： | 上海轨道交通4号线既有地铁车站的风井改造,基坑邻近既有地铁隧道和居民住宅楼,周边情况复杂,环境保护要求高。介绍了基坑设计中对既有地铁的保护要求、基坑保护等级以及基坑围护结构的设计方案。简单介绍了基坑计算方法,针对邻近地铁隧道区间和居民住宅楼2个对象,运用有限元方法分析了深基坑开挖对周围环境的影响。该设计方案能保证基坑开挖对周围建筑物的影响在可控制范围之内。
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| 关 键 词： | 风井改建 基坑设计 既有地铁保护 数值模拟 |
On Foundation Pit Design for Reconstruction Air Shaft Project Adjacent to Existing Subway Tunnel |
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| LING Hui.On Foundation Pit Design for Reconstruction Air Shaft Project Adjacent to Existing Subway Tunnel[J].China Municipal Engineering,2012(3):69-71,109. |
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| Authors: | LING Hui |
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| Affiliation: | LING Hui(Shanghai Urban Construction Design & Research Institute,Shanghai 200125,China) |
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| Abstract: | The existing station shaft reconstruction project of Shanghai Metro L4 is introduced in this paper focusing on the foundation pit adjacent to the existing metro tunnel and residential buildings,complicated surroundings and high requirements of environment protection.The related protection demands to existing metro,foundation pit protection grade & envelop enclosure design plan are presented.Then,the foundation pit calculation method is discussed briefly and the influence of deep foundation pit excavation to the surroundings is analyzed by finite element method aiming at adjacent metro tunnel section and residential building.The design plan can guarantee the influence of foundation pit excavation to the surrounding buildings under control. |
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| Keywords: | air shaft reconstruction foundation pit design existing subway protection numerical simulation |
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