| 浅埋暗挖隧道穿越楼房基础的三维数值模拟 |
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| 引用本文： | 李进军,王显春,庄纪栋,黄茂松. 浅埋暗挖隧道穿越楼房基础的三维数值模拟[J]. 地下空间与工程学报, 2005, 1(1): 78-82,90 |
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| 作者姓名： | 李进军 王显春 庄纪栋 黄茂松 |
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| 作者单位： | 同济大学地下建筑与工程系,上海,200092;中铁十四局渝怀铁路指挥部四公司,临沂,276003 |
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| 摘 要： | 针对武隆隧道出口处穿越楼房基础的工程实例，通过合理的简化和假设建立三维仿真模型。采用大型有限元程序，通过荷载增量步和单元生死技术，分两种模拟工况对浅埋暗挖隧道的动态开挖全过程进行数值模拟分析，研究了加强支护的刚度控制施工方法对地表和拱顶沉降的影响，为类似的工程实践提供指导。
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| 关 键 词： | 浅埋隧道 穿越问题 刚度控制 动态开挖 数值模拟 |
| 文章编号： | 1673-0836(2005)01-0078-05 |
3-D Numerical Simulating Study on Excavation of Shallow Burying Tunnel Through the Building Foundation |
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| LI Jin-jun,WANG Xian-chun,ZHUANG Ji-dong,HUANG Mao-song. 3-D Numerical Simulating Study on Excavation of Shallow Burying Tunnel Through the Building Foundation[J]. Chinese Journal of Underground Space and Engineering, 2005, 1(1): 78-82,90 |
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| Authors: | LI Jin-jun WANG Xian-chun ZHUANG Ji-dong HUANG Mao-song |
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| Abstract: | On the study of the engineering practice of excavation of Wulong tunnel under building foundation, the three dimension numerical modeling was established by reasonable simplification and hypothesis. Using FEM programs, the two simulation working condition of the dynamic excavation process for the shallow burying tunnel under building foundation was numerically simulated by the FEM techniques of loading increment step and element live/death. The influence of stiffness controlling method by reinforce the timbering on the settlement of ground and tunnel top were considered. This study can provide guide for the similar engineering practices. |
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| Keywords: | shallow burying tunnel crossing problem stiffness controlling dynamic excavation numerical simulation |
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