Solid-Fluid Coupled Numerical Analysis of Suction Caisson Installation in Sand
Suction caissons are widely used foundations in offshore engineering. The change in excess pore pressure and seepage field caused by penetration and suction significantly affects the soil resistance around the caisson wall and tip, and also affects the deformation of the soil within and adjacent to...
| Glavni autori: | , , |
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| Format: | Članak |
| Jezik: | English |
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MDPI AG
2021-06-01
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| Serija: | Journal of Marine Science and Engineering |
| Teme: | |
| Online pristup: | https://www.mdpi.com/2077-1312/9/7/704 |
| _version_ | 1827601289737928704 |
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| author | He Wang Rui Wang Jian-Min Zhang |
| author_facet | He Wang Rui Wang Jian-Min Zhang |
| author_sort | He Wang |
| collection | DOAJ |
| description | Suction caissons are widely used foundations in offshore engineering. The change in excess pore pressure and seepage field caused by penetration and suction significantly affects the soil resistance around the caisson wall and tip, and also affects the deformation of the soil within and adjacent to the caisson. This study uses Arbitrary Lagrangian–Eulerian (ALE) large deformation solid-fluid coupled FEM to investigate the changes in suction pressure and the seepage field during the process of the suction caisson installation in sand. A nonlinear Drucker-Prager model is used to model soil, while Coulomb friction is applied at the soil-caisson interface. The ALE solid-fluid coupled FEM is shown to be able to successfully simulate both jacked penetration and suction penetration caisson installation processes in sand observed in centrifuge tests. The difference in penetration resistance for jacked and suction installation is found to be caused by the seepage and excess pore pressure generated during the suction caisson installation, highlighting the importance of using solid-fluid coupled effective stress-based analysis to consider seepage in the evaluation of suction caisson penetration. |
| first_indexed | 2024-03-09T04:51:11Z |
| format | Article |
| id | doaj.art-a11baf4f9e4c43e89d5aeaf4a4362d16 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T04:51:11Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-a11baf4f9e4c43e89d5aeaf4a4362d162023-12-03T13:10:22ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-06-019770410.3390/jmse9070704Solid-Fluid Coupled Numerical Analysis of Suction Caisson Installation in SandHe Wang0Rui Wang1Jian-Min Zhang2State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, ChinaState Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, ChinaSuction caissons are widely used foundations in offshore engineering. The change in excess pore pressure and seepage field caused by penetration and suction significantly affects the soil resistance around the caisson wall and tip, and also affects the deformation of the soil within and adjacent to the caisson. This study uses Arbitrary Lagrangian–Eulerian (ALE) large deformation solid-fluid coupled FEM to investigate the changes in suction pressure and the seepage field during the process of the suction caisson installation in sand. A nonlinear Drucker-Prager model is used to model soil, while Coulomb friction is applied at the soil-caisson interface. The ALE solid-fluid coupled FEM is shown to be able to successfully simulate both jacked penetration and suction penetration caisson installation processes in sand observed in centrifuge tests. The difference in penetration resistance for jacked and suction installation is found to be caused by the seepage and excess pore pressure generated during the suction caisson installation, highlighting the importance of using solid-fluid coupled effective stress-based analysis to consider seepage in the evaluation of suction caisson penetration.https://www.mdpi.com/2077-1312/9/7/704suction caisson installationfinite element methodarbitrary Lagrangian–Eulerian analysissolid-fluid couplingsoil-structure interaction |
| spellingShingle | He Wang Rui Wang Jian-Min Zhang Solid-Fluid Coupled Numerical Analysis of Suction Caisson Installation in Sand Journal of Marine Science and Engineering suction caisson installation finite element method arbitrary Lagrangian–Eulerian analysis solid-fluid coupling soil-structure interaction |
| title | Solid-Fluid Coupled Numerical Analysis of Suction Caisson Installation in Sand |
| title_full | Solid-Fluid Coupled Numerical Analysis of Suction Caisson Installation in Sand |
| title_fullStr | Solid-Fluid Coupled Numerical Analysis of Suction Caisson Installation in Sand |
| title_full_unstemmed | Solid-Fluid Coupled Numerical Analysis of Suction Caisson Installation in Sand |
| title_short | Solid-Fluid Coupled Numerical Analysis of Suction Caisson Installation in Sand |
| title_sort | solid fluid coupled numerical analysis of suction caisson installation in sand |
| topic | suction caisson installation finite element method arbitrary Lagrangian–Eulerian analysis solid-fluid coupling soil-structure interaction |
| url | https://www.mdpi.com/2077-1312/9/7/704 |
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