| 盾构法隧道施工引起地表变形分析 |
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| 引用本文： | 周宪伟,王幼青,李德海.盾构法隧道施工引起地表变形分析[J].低温建筑技术,2009,31(2):93-95. |
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| 作者姓名： | 周宪伟 王幼青 李德海 |
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| 作者单位： | 1. 黑龙江工程学院,哈尔滨,1500502
2. 哈尔滨工业大学,哈尔滨,150090 |
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| 摘 要： | 采用有限元软件ANSYS对盾构隧道动态开挖过程进行数值模拟，将硐周节点应力逐级释放来模拟开挖施工过程，在模拟过程中考虑了土体的分层特性、土体材料的本构非线性以及注浆施工对土体变形的影响。并采用明德林解考虑了盾壳和土体之间纵向摩擦力对土体变形的影响。分析中提出了考虑衬砌与土体共同作用的硐周结点荷载释放系数法。通过对工程实例分析验证了该方法的可行性。
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| 关 键 词： | 盾构法隧道 荷载释放系数 |
THE ANALYSIS OF DEFORMATION OF GROUND SURFACE CAUSED BY SHIELD-DRIVEN THE ANALYSIS OF DEFORMATION OF GROUND SURFACE CAUSED BY SHIELD-DRIVEN |
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| ZHOU Xian-wei,WANG You-qing,LI De-hai.THE ANALYSIS OF DEFORMATION OF GROUND SURFACE CAUSED BY SHIELD-DRIVEN THE ANALYSIS OF DEFORMATION OF GROUND SURFACE CAUSED BY SHIELD-DRIVEN[J].Low Temperature Architecture Technology,2009,31(2):93-95. |
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| Authors: | ZHOU Xian-wei WANG You-qing LI De-hai |
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| Affiliation: | 1.Heilongjiang Institute of Technology;Harbin 150050;China;2.Harbin Institute of Technology;Harbin 150090;China |
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| Abstract: | In this dissertation two-dimensional finite element method is applied to imitating the process of shield tunnel construction.The layered characteristic,material nonlinearity and plastic deformation of soil are all considered. The idiographic means is that the force of nodes on the wall of tunnel is released gradually and the influence of filling out grout is considered.The method of fixing on the factor of load releasing before lining beginning to produce effect is original.Differing from previous two-dimen... |
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| Keywords: | shield tunnelling coefficient of load releasing mindlin's elastic solution |
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