Feasibility of submerged floating tunnel with polygonal cross-sections — investigation from a viewpoint of submarine slide hazards
Recently, submerged floating tunnels have generated a lot of interest due to their unique cross-water traffic benefits. However, the destructive threat of submarine slide hazards was not fully considered in the design scheme of submerged floating tunnels, in particular to the feasibility of applying...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-04-01
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| Series: | Frontiers in Marine Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2023.1170553/full |
| _version_ | 1797854058566909952 |
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| author | Ning Fan Ning Fan Yixuan Hu Yixuan Hu Hao Wu Xiaobing Li Xiaobing Li Jianxiong Jiang Jianxiong Jiang Jiacheng Xie Jiacheng Xie |
| author_facet | Ning Fan Ning Fan Yixuan Hu Yixuan Hu Hao Wu Xiaobing Li Xiaobing Li Jianxiong Jiang Jianxiong Jiang Jiacheng Xie Jiacheng Xie |
| author_sort | Ning Fan |
| collection | DOAJ |
| description | Recently, submerged floating tunnels have generated a lot of interest due to their unique cross-water traffic benefits. However, the destructive threat of submarine slide hazards was not fully considered in the design scheme of submerged floating tunnels, in particular to the feasibility of applying various cross-section forms on land to submerged floating tunnels under that hazard influence. This study mainly investigates the load effect of submerged floating tunnels with polygonal cross-sections (comprising three types: square, hexagon, and octagon) under the impact of submarine slides, via a computational fluid dynamics (CFD) approach. Results show that the impact forces produced by submarine slides on submerged floating tunnels are significant (e.g., submarine slides with a velocity of 4 m/s may produce a force level near 1×105 N/m), where the horizontal impact force components should be given priority consideration based on the general working environment of submerged floating tunnels. Compared with typical circle tunnels, polygonal tunnels suffer higher impact forces, and the polygonal types with fewer edges show a greater impact force. Finally, a simplified force evaluation approach for the submerged floating tunnel with polygonal cross-sections is proposed for guiding the relevant engineering design. |
| first_indexed | 2024-04-09T20:00:56Z |
| format | Article |
| id | doaj.art-7990e2384ef24282900a9be9cedeadb3 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-09T20:00:56Z |
| publishDate | 2023-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-7990e2384ef24282900a9be9cedeadb32023-04-03T05:09:28ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452023-04-011010.3389/fmars.2023.11705531170553Feasibility of submerged floating tunnel with polygonal cross-sections — investigation from a viewpoint of submarine slide hazardsNing Fan0Ning Fan1Yixuan Hu2Yixuan Hu3Hao Wu4Xiaobing Li5Xiaobing Li6Jianxiong Jiang7Jianxiong Jiang8Jiacheng Xie9Jiacheng Xie10College of Civil Engineering and Architecture, Wenzhou University, Wenzhou, ChinaScience Technology Department of Zhejiang Province, Key Laboratory of Engineering and Technology for Soft Soil Foundation and Tideland Reclamation of Zhejiang Province, Wenzhou University, Wenzhou, ChinaCollege of Civil Engineering and Architecture, Wenzhou University, Wenzhou, ChinaScience Technology Department of Zhejiang Province, Key Laboratory of Engineering and Technology for Soft Soil Foundation and Tideland Reclamation of Zhejiang Province, Wenzhou University, Wenzhou, ChinaNanjing Hydraulic Research Institute, Nanjing, ChinaCollege of Civil Engineering and Architecture, Wenzhou University, Wenzhou, ChinaScience Technology Department of Zhejiang Province, Key Laboratory of Engineering and Technology for Soft Soil Foundation and Tideland Reclamation of Zhejiang Province, Wenzhou University, Wenzhou, ChinaCollege of Civil Engineering and Architecture, Wenzhou University, Wenzhou, ChinaScience Technology Department of Zhejiang Province, Key Laboratory of Engineering and Technology for Soft Soil Foundation and Tideland Reclamation of Zhejiang Province, Wenzhou University, Wenzhou, ChinaCollege of Civil Engineering and Architecture, Wenzhou University, Wenzhou, ChinaScience Technology Department of Zhejiang Province, Key Laboratory of Engineering and Technology for Soft Soil Foundation and Tideland Reclamation of Zhejiang Province, Wenzhou University, Wenzhou, ChinaRecently, submerged floating tunnels have generated a lot of interest due to their unique cross-water traffic benefits. However, the destructive threat of submarine slide hazards was not fully considered in the design scheme of submerged floating tunnels, in particular to the feasibility of applying various cross-section forms on land to submerged floating tunnels under that hazard influence. This study mainly investigates the load effect of submerged floating tunnels with polygonal cross-sections (comprising three types: square, hexagon, and octagon) under the impact of submarine slides, via a computational fluid dynamics (CFD) approach. Results show that the impact forces produced by submarine slides on submerged floating tunnels are significant (e.g., submarine slides with a velocity of 4 m/s may produce a force level near 1×105 N/m), where the horizontal impact force components should be given priority consideration based on the general working environment of submerged floating tunnels. Compared with typical circle tunnels, polygonal tunnels suffer higher impact forces, and the polygonal types with fewer edges show a greater impact force. Finally, a simplified force evaluation approach for the submerged floating tunnel with polygonal cross-sections is proposed for guiding the relevant engineering design.https://www.frontiersin.org/articles/10.3389/fmars.2023.1170553/fullsubmerged floating tunnelpolygonal cross-sectionsubmarine slide hazardimpact forcedesign |
| spellingShingle | Ning Fan Ning Fan Yixuan Hu Yixuan Hu Hao Wu Xiaobing Li Xiaobing Li Jianxiong Jiang Jianxiong Jiang Jiacheng Xie Jiacheng Xie Feasibility of submerged floating tunnel with polygonal cross-sections — investigation from a viewpoint of submarine slide hazards Frontiers in Marine Science submerged floating tunnel polygonal cross-section submarine slide hazard impact force design |
| title | Feasibility of submerged floating tunnel with polygonal cross-sections — investigation from a viewpoint of submarine slide hazards |
| title_full | Feasibility of submerged floating tunnel with polygonal cross-sections — investigation from a viewpoint of submarine slide hazards |
| title_fullStr | Feasibility of submerged floating tunnel with polygonal cross-sections — investigation from a viewpoint of submarine slide hazards |
| title_full_unstemmed | Feasibility of submerged floating tunnel with polygonal cross-sections — investigation from a viewpoint of submarine slide hazards |
| title_short | Feasibility of submerged floating tunnel with polygonal cross-sections — investigation from a viewpoint of submarine slide hazards |
| title_sort | feasibility of submerged floating tunnel with polygonal cross sections investigation from a viewpoint of submarine slide hazards |
| topic | submerged floating tunnel polygonal cross-section submarine slide hazard impact force design |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2023.1170553/full |
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