| Finite Element Analysis on Interaction of Neighboring Highway Tunnels under Construction |
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| 作者姓名： | HU Jian - ming ZHANG Yong - xing |
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| 作者单位： | College of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China |
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| 摘 要： | Recently, the construction of neighboring highway tunnels with small interval gets more and more in China. The construction of such tunnels proceeds usually by excavating one after another. The second tunnel is constructed with the surrounding rock disturbed by the first one. And the construction of second tunnel also has effect on the first excavated one. For revealing the interaction laws of such tunnel construction in combination with the engineering practice of Lanfeng tunnel at Jinshan Road in Chongqing, The FE numerical simulation analysis was used to study the characters of surrounding rock deformation, stress field, and plastic zone of the tunnel. From this analysis, it clearly shows that the excavation of second tunnel has significant influence on the first one. This study provides a scientific basis for design and excavation of neighboring highway tunnels.
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| 关 键 词： | neighboring tunnels with small interval numerical simulation deformation displacement stress field plastic zone |
| 收稿时间： | 2006/4/20 0:00:00 |
| 修稿时间： | 2006/4/20 0:00:00 |
Finite Element Analysis on Interaction of Neighboring Highway Tunnels under Construction |
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| HU Jian - ming,ZHANG Yong - xing.Finite Element Analysis on Interaction of Neighboring Highway Tunnels under Construction[J].Storage & Process,2006(6):68-71134. |
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| Authors: | HU Jian - ming ZHANG Yong - xing |
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| Institution: | College of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China |
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| Abstract: | Recently, the construction of neighboring highway tunnels with small interval gets more and more in China. The construction of such tunnels proceeds usually by excavating one after another. The second tunnel is constructed with the surrounding rock disturbed by the first one. And the construction of second tunnel also has effect on the first excavated one. For revealing the interaction laws of such tunnel construction in combination with the engineering practice of Lanfeng tunnel at Jinshan Road in Chongqing, The FE numerical simulation analysis was used to study the characters of surrounding rock deformation, stress field, and plastic zone of the tunnel. From this analysis, it clearly shows that the excavation of second tunnel has significant influence on the first one. This study provides a scientific basis for design and excavation of neighboring highway tunnels. |
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| Keywords: | neighboring tunnels with small interval numerical simulation deformation displacement stress field plastic zone |
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