| 新建地铁车站零距离下穿既有线区间影响分析 |
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| 引用本文： | 毕俊丽,王伟锋. 新建地铁车站零距离下穿既有线区间影响分析[J]. 现代隧道技术, 2010, 47(5) |
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| 作者姓名： | 毕俊丽 王伟锋 |
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| 作者单位： | 北京城建设计研究总院有限责任公司; |
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| 摘 要： | 暗挖隧道下穿既有地铁施工,势必会引起既有地铁结构附加变形和差异沉降,影响其结构及运营安全,需要进行变形和内力分析,以便采取必要保护措施.文章以某暗挖车站密贴下穿既有地铁区间为例,采用FLAC3D和SAP 2000模拟,分析既有地铁区间变形和内力发展规律,评价结构和运营安全受影响的程度,为安全保护提供决策依据.
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| 关 键 词： | 地铁车站 既有线 计算模型 结构安全 运营安全 |
Influence Analysis of a New Metro Station Under-passing Existing Running Tunnels with Zero Distance |
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| Bi Junli,Wang Weifeng. Influence Analysis of a New Metro Station Under-passing Existing Running Tunnels with Zero Distance[J]. Modern Tunnelling Technology, 2010, 47(5) |
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| Authors: | Bi Junli Wang Weifeng |
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| Affiliation: | Bi Junli Wang Weifeng(Beijing Urban Engineering Design & Research Institute Co.,Ltd.,Beijing 100037) |
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| Abstract: | When a tunnel constructed by mining excavation under-passes existing metro tunnels,additional deformations and differential settlements of existing structure will occur,and structural and operation safety will be affected.Deformations and internal forces should be analyzed to take necessary protection measures.A metro station constructed by mining excavation and under-passed existing metro running tunnels with zero distance was simulated by adopting softwares FLAC3D and SAP2000 to analyze deformations and i... |
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| Keywords: | Metro station Existing line Computation model Structural safety Operation safety |
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