| 城市道路隧道悬臂桩围护结构方案分析 |
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| 引用本文： | 李德宏.城市道路隧道悬臂桩围护结构方案分析[J].现代隧道技术,2011,48(4):78-82. |
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| 作者姓名： | 李德宏 |
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| 作者单位： | 云南省交通规划设计研究院,昆明,650011 |
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| 摘 要： | 在软弱地层中采用明挖法修建隧道时围护结构方案的选择是关键环节之一。文章结合昆明三环路下穿成昆铁路的隧道工程,通过对放坡明挖法、带支撑的钻孔桩围护结构、悬臂桩围护结构的比较,研究分析了城市隧道建设中采用悬臂桩围护结构的优越性及其技术特点。
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| 关 键 词： | 城市隧道 深基坑 悬臂桩 结构分析 |
Analysis of the Cantilever-pile Retaining Structure of an Urban Road Tunnel |
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| Li Dehong.Analysis of the Cantilever-pile Retaining Structure of an Urban Road Tunnel[J].Modern Tunnelling Technology,2011,48(4):78-82. |
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| Authors: | Li Dehong |
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| Institution: | Li Dehong (Yunnan Provincial Communications Planning & Design Institute,Kunming 650011) |
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| Abstract: | Selection of retaining structures is one of the key issues for cut-and-cover tunnel construction in soft rocks.Considering the tunnel project under-crossing the Kunming 3rd ring road,a comparison was carried out between: cut-and-cover construction;a bored-pile retaining structure with bracings;and a cantilever-pile retaining structure.The advantages and characteristics of cantilever-pile retaining structures in urban tunnel works were analyzed. |
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| Keywords: | Urban tunnel Deep pit Cantilever-pile retaining structure Structure analysis |
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