| 软土地层近距离上穿既有隧道变形的数值模拟 |
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| 引用本文： | 孙玉永,宋天田,周顺华.软土地层近距离上穿既有隧道变形的数值模拟[J].华东交通大学学报,2007,24(4):36-38,45. |
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| 作者姓名： | 孙玉永 宋天田 周顺华 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,200331 |
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| 摘 要： | 针对上海市某地铁隧道近距离上穿运营中的地铁二号线,二者最小净间距为1.33m,通过三维数值模拟得到在新隧道推进过程中,地铁二号线和地表都表现为隆起,二号线最大隆起量为7.29mm,地表最大隆起量为16mm;地铁二号线的变形分为沉降、隆起及稳定三个阶段等结论.
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| 关 键 词： | 盾构隧道 上穿 变形 三维有限元 数值模拟 |
| 文章编号： | 1005-0523（2007）04-0036-03 |
| 收稿时间： | 2007-03-19 |
| 修稿时间： | 2007-03-19 |
3D-FEM Simulation of Deformation of Short Distance Overlapped Tunnels in Soft Soil Stratum |
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| SUN Yu-yong,SONG Tian-tian,ZHOU Shun-hua.3D-FEM Simulation of Deformation of Short Distance Overlapped Tunnels in Soft Soil Stratum[J].Journal of East China Jiaotong University,2007,24(4):36-38,45. |
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| Authors: | SUN Yu-yong SONG Tian-tian ZHOU Shun-hua |
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| Institution: | Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200331, China |
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| Abstract: | A shield-driven tunnel is constructed adjacent to the Metro Line 2 tunnels in Shanghai.A minimum distance is 1.33m between the two tunneis.From the 3D-FEM simulation,the Metro Line 2 and ground surface are built-up,the max deformation of which 7.29mm and 16mm,and the three steps-settlement,build-up,stabilization of the Metro Line 2 are gained when the shield driving. |
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| Keywords: | shield tunneling over drifted deformation 3D-FEM numerical simulation |
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