| 高速公路连拱隧道开挖三维变形及沉降分析 |
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| 引用本文： | 孙少锐,吴继敏,魏继红,景佳. 高速公路连拱隧道开挖三维变形及沉降分析[J]. 南昌水专学报, 2006, 25(3): 1-6 |
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| 作者姓名： | 孙少锐 吴继敏 魏继红 景佳 |
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| 作者单位： | 河海大学,岩土工程研究所,江苏,南京,210098;河海大学,土木工程学院,江苏,南京,210098 |
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| 基金项目： | 浙江省交通科技计划基金资助项目(2004H27) |
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| 摘 要： | 通过对金丽温高速公路垟湾连拱隧道工程区的地质特征进行详细的分析和现场调查,系统研究了金丽温高速公路垟湾隧道开挖及加固全过程的围岩变形场及其变化特征,得出围岩在加固后变形值最大减少近30%的结论.对在不同开挖步中的地表沉降(Y向位移)进行分析,研究连拱隧道地表最大沉降部位横断面及纵断面的沉降规律,并分别建立对应的沉降预测模型,为破碎岩体中浅埋连拱隧道开挖地表沉降预测提供一定的理论依据.
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| 关 键 词： | 连拱隧道 变形分析 开挖 沉降预测模型 横断面及纵断面 |
| 文章编号： | 1006-4869(2006)03-0001-04 |
| 修稿时间： | 2006-06-16 |
Analysis of 3D Deformation and Settlement for Doubled Arch Tunnels Excavation in Highway |
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| SUN Shao-rui,WU Ji-min,WEI Ji-hong,JING Jia. Analysis of 3D Deformation and Settlement for Doubled Arch Tunnels Excavation in Highway[J]. Journal of Nanchang College of Water Conservancy and Hydroelectric Power, 2006, 25(3): 1-6 |
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| Authors: | SUN Shao-rui WU Ji-min WEI Ji-hong JING Jia |
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| Abstract: | The discontinuity plane geological characteristics of Yangwan doubled arch tunnel in Jinliwen highway is investigated and analyzed in this paper.Surrounding rock displacement field of excavation and consolidation for Yangwan doubled arch tunnel in Jinliwen highway are researched.The result shows that deformation of surrounding rock is small after consolidation for Yangwan tunnel,and displacement decreases thirty percent after liner.The ground surface Y-displacement is analyzed in different excavation step.The settlement rule of transect and vertical section of the ground surface maximum settlement part for doubled arch tunnel are researched,and the corresponding settlement models are built respectively.It provides a definite theoretical basis for the ground surface settlement forecasting for shallow fragmentized doubled arch tunnel excavation. |
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| Keywords: | double arch tunnel deformation analysis excavation settlement forecasting model transect and vertical section |
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