| 地铁盾构隧道穿越既有铁路隧道的数值模拟 |
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| 引用本文： | 王军,缪林昌.地铁盾构隧道穿越既有铁路隧道的数值模拟[J].现代交通技术,2011,8(5):66-69. |
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| 作者姓名： | 王军 缪林昌 |
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| 作者单位： | 1. 无锡市轨道交通发展有限公司,江苏无锡,214043
2. 东南大学岩土工程研究所,江苏南京,210096 |
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| 摘 要： | 以无锡地铁某盾构隧道区间穿越既有铁路隧道为工程实例,基于Ansys数值软件建立3维力学模型,从盾构隧道施工过程中的盾构推力、注浆压力、施工工况、相邻隧道间距4个方面对盾构隧道施工引起的既有铁路隧道的结构变形和受力规律进行了数值模拟,并分析了既有隧道变形的机理和影响因素。
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| 关 键 词： | 地铁 盾构隧道 既有隧道 数值模拟 结构变形 |
Numerical Simulation of Subway Shield Tunnel Crossing an Existing Railway Tunnel |
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| Wang Jun,Miao Linchang.Numerical Simulation of Subway Shield Tunnel Crossing an Existing Railway Tunnel[J].Modern Transportation Technology,2011,8(5):66-69. |
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| Authors: | Wang Jun Miao Linchang |
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| Institution: | Wang Jun~1,Miao Linchang~2(1.Wuxi Rail Transit Development Co.,Ltd,Wuxi 214043,China,2.Institute of Geotechnical Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | Taking a shield tunnel section of Wuxi subway crossing an existing railway tunnel as an example,the three-dimensional mechanics model is established based on Ansys software,the law of railway tunnel structure distortion and force caused by shield tunnel construction are simulated numerically from aspects of shield push,pressure grouting,construction condition and the neighboring tunnel spacing in construction,the distortion mechanism and the influence factor of the existing railway tunnel are analyzed. |
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| Keywords: | subway shield tunnel existing tunnel numerical simulation structure deformation |
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