Potential Roof Collapse Analysis of Tunnel Considering the Orthotropic Weak Interlayer on the Detaching Surface
The evaluation of the roof collapse in tunnels or cavities remains one of the most complex issues in geotechnical engineering. Taking the detaching surface of the tunnel roof collapse as an orthotropic weak interlayer, an analytical approach for determining the limit collapse range considering the a...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/3100011 |
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| _version_ | 1850161647755198464 |
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| author | Tong Xu Dingli Zhang Zhenyu Sun Lin Yu Ran Li Jiwei Luo |
| author_facet | Tong Xu Dingli Zhang Zhenyu Sun Lin Yu Ran Li Jiwei Luo |
| author_sort | Tong Xu |
| collection | DOAJ |
| description | The evaluation of the roof collapse in tunnels or cavities remains one of the most complex issues in geotechnical engineering. Taking the detaching surface of the tunnel roof collapse as an orthotropic weak interlayer, an analytical approach for determining the limit collapse range considering the arch effect of the tunnel is presented in this paper by the variation calculus. A discontinuity criterion moving from the anisotropic criterion proposed by the present authors is applied to the orthotropic interlayer. The phenomenon of sharp points in collapse blocks is further analyzed. Based on the proposed approach, illustrated examples are analyzed to investigate the effect of the strength parameters and the consideration of the collapse cusp, which show different influence laws on the range of collapse blocks. Those interesting conclusions can provide guidance for the prediction of the collapse mechanism of the tunnel. |
| format | Article |
| id | doaj-art-fed8588179aa4ff6b8a29ba4cc2b723c |
| institution | OA Journals |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-fed8588179aa4ff6b8a29ba4cc2b723c2025-08-20T02:22:45ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/3100011Potential Roof Collapse Analysis of Tunnel Considering the Orthotropic Weak Interlayer on the Detaching SurfaceTong Xu0Dingli Zhang1Zhenyu Sun2Lin Yu3Ran Li4Jiwei Luo5Key Laboratory of Urban Underground Engineering of Ministry of EducationKey Laboratory of Urban Underground Engineering of Ministry of EducationKey Laboratory of Urban Underground Engineering of Ministry of EducationKey Laboratory of Urban Underground Engineering of Ministry of EducationChina Tiesiju Civil Engineering Group Co., Ltd.Tianjin Research Institute for Water Transport EngineeringThe evaluation of the roof collapse in tunnels or cavities remains one of the most complex issues in geotechnical engineering. Taking the detaching surface of the tunnel roof collapse as an orthotropic weak interlayer, an analytical approach for determining the limit collapse range considering the arch effect of the tunnel is presented in this paper by the variation calculus. A discontinuity criterion moving from the anisotropic criterion proposed by the present authors is applied to the orthotropic interlayer. The phenomenon of sharp points in collapse blocks is further analyzed. Based on the proposed approach, illustrated examples are analyzed to investigate the effect of the strength parameters and the consideration of the collapse cusp, which show different influence laws on the range of collapse blocks. Those interesting conclusions can provide guidance for the prediction of the collapse mechanism of the tunnel.http://dx.doi.org/10.1155/2022/3100011 |
| spellingShingle | Tong Xu Dingli Zhang Zhenyu Sun Lin Yu Ran Li Jiwei Luo Potential Roof Collapse Analysis of Tunnel Considering the Orthotropic Weak Interlayer on the Detaching Surface Advances in Civil Engineering |
| title | Potential Roof Collapse Analysis of Tunnel Considering the Orthotropic Weak Interlayer on the Detaching Surface |
| title_full | Potential Roof Collapse Analysis of Tunnel Considering the Orthotropic Weak Interlayer on the Detaching Surface |
| title_fullStr | Potential Roof Collapse Analysis of Tunnel Considering the Orthotropic Weak Interlayer on the Detaching Surface |
| title_full_unstemmed | Potential Roof Collapse Analysis of Tunnel Considering the Orthotropic Weak Interlayer on the Detaching Surface |
| title_short | Potential Roof Collapse Analysis of Tunnel Considering the Orthotropic Weak Interlayer on the Detaching Surface |
| title_sort | potential roof collapse analysis of tunnel considering the orthotropic weak interlayer on the detaching surface |
| url | http://dx.doi.org/10.1155/2022/3100011 |
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