Ground Displacements due to the Deformations of Shallow Tunnels with Arbitrary Cross Sections in Soft Ground
Nowadays, a huge number of shield-driven tunnels with noncircular cross sections are constructed in urban areas all around the world. However, the ground displacements associated with tunneling still form a difficult issue, especially for noncircular tunnels. In this study, an analytical solution is...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9916159 |
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| author | Qiongfang Zhang Kang Cheng Cungang Lin Yadong Lou Panpan Guo Xiaolu Gan |
| author_facet | Qiongfang Zhang Kang Cheng Cungang Lin Yadong Lou Panpan Guo Xiaolu Gan |
| author_sort | Qiongfang Zhang |
| collection | DOAJ |
| description | Nowadays, a huge number of shield-driven tunnels with noncircular cross sections are constructed in urban areas all around the world. However, the ground displacements associated with tunneling still form a difficult issue, especially for noncircular tunnels. In this study, an analytical solution is derived to estimate the ground displacements induced by the deformations of shallow noncircular tunnels in soft ground. First, a solution for the stresses and displacements around a deep tunnel in a full plane is formulated by imposing a specified convergence pattern over the cavity boundary. Subsequently, this solution is validated using finite element simulations in a case study of an elliptical tunnel with four different convergence patterns. Afterward, the solution in the full plane is extended to a half plane using the virtual image technique to estimate the ground displacements around shallow tunnels. The solution is also validated using finite element simulations. |
| format | Article |
| id | doaj-art-0b940559c0004fba8b42619b70e75907 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-0b940559c0004fba8b42619b70e759072025-02-03T01:24:45ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/99161599916159Ground Displacements due to the Deformations of Shallow Tunnels with Arbitrary Cross Sections in Soft GroundQiongfang Zhang0Kang Cheng1Cungang Lin2Yadong Lou3Panpan Guo4Xiaolu Gan5Power China Huadong Engineering Corporation Limited, Hangzhou 311122, Zhejiang, ChinaChina Railway 11th Bureau Group Co., Ltd., Wuhan 430061, ChinaSchool of Civil Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaHangzhou Metro Group Co., Ltd., Hangzhou 310003, Zhejiang, ChinaResearch Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, ChinaResearch Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, ChinaNowadays, a huge number of shield-driven tunnels with noncircular cross sections are constructed in urban areas all around the world. However, the ground displacements associated with tunneling still form a difficult issue, especially for noncircular tunnels. In this study, an analytical solution is derived to estimate the ground displacements induced by the deformations of shallow noncircular tunnels in soft ground. First, a solution for the stresses and displacements around a deep tunnel in a full plane is formulated by imposing a specified convergence pattern over the cavity boundary. Subsequently, this solution is validated using finite element simulations in a case study of an elliptical tunnel with four different convergence patterns. Afterward, the solution in the full plane is extended to a half plane using the virtual image technique to estimate the ground displacements around shallow tunnels. The solution is also validated using finite element simulations.http://dx.doi.org/10.1155/2021/9916159 |
| spellingShingle | Qiongfang Zhang Kang Cheng Cungang Lin Yadong Lou Panpan Guo Xiaolu Gan Ground Displacements due to the Deformations of Shallow Tunnels with Arbitrary Cross Sections in Soft Ground Advances in Civil Engineering |
| title | Ground Displacements due to the Deformations of Shallow Tunnels with Arbitrary Cross Sections in Soft Ground |
| title_full | Ground Displacements due to the Deformations of Shallow Tunnels with Arbitrary Cross Sections in Soft Ground |
| title_fullStr | Ground Displacements due to the Deformations of Shallow Tunnels with Arbitrary Cross Sections in Soft Ground |
| title_full_unstemmed | Ground Displacements due to the Deformations of Shallow Tunnels with Arbitrary Cross Sections in Soft Ground |
| title_short | Ground Displacements due to the Deformations of Shallow Tunnels with Arbitrary Cross Sections in Soft Ground |
| title_sort | ground displacements due to the deformations of shallow tunnels with arbitrary cross sections in soft ground |
| url | http://dx.doi.org/10.1155/2021/9916159 |
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