Analysis of the interaction and influence between urban underground tunnel and adjacent structure |
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| Authors: | SONG Qiang-hui ZHAO Shang-yi LIU Dong-sheng GUO Jian-feng |
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| Institution: | 1. Dept. of Architecture & Civil Engineering, Logistical Engineering University, Chongqing 400041, China; 2. Chongqing Engineering Research Center for Geotechnical Hazard Prevention and Treatment, Chongqing 400041, China; 3. Chongqing Institute of Geology & Mineral Resources Survey, Chongqing 400039, China |
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| Abstract: | The construction of underground project or the underground tunnel will influence the subsiding of adjacent building on the earth surface. One urban underground tunnel is adjacent to a high-rise building called Shuijingchengbao. By using three methods that are qualitative analysis of engineering geologic, experience analogism of adjacent similar engineering constructions and 3D finite element method (FEM), the interaction and influence between the tunnel and the adjacent structure was synthetically analyzed and evaluated. The result indicates that the structure’s building has neglectable disturbance to the displacement and stress of underground tunnel, the maximal vertical displacement of tunnel roof is only 1.15mm and the change of plastic zone is tiny. Hence, it can be justified that the building of the engineering is unlikely to influence the safety and stability of surrounding rock of the tunnel without abnormality construction and exceptional engineering-geology. It can offer a theoretical reference to the construction of the underground engineering. |
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| Keywords: | underground tunnel interaction 3D-FEA stability |
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