Finite Element Analysis and Parametric Study of Spudcan Footing Geometries Penetrating Clay Near Existing Footprints
Most existing research on the stability of spudcans during reinstallation nearing footprints is based on centrifuge tests and theoretical analyses. In this study, the reinstallation of the flat base footing, fusimform spudcan footing and skirted footing near existing footprints are simulated using t...
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| Format: | Article |
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MDPI AG
2019-06-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/7/6/175 |
| _version_ | 1818936373444345856 |
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| author | Long Yu Heyue Zhang Jing Li Xian Wang |
| author_facet | Long Yu Heyue Zhang Jing Li Xian Wang |
| author_sort | Long Yu |
| collection | DOAJ |
| description | Most existing research on the stability of spudcans during reinstallation nearing footprints is based on centrifuge tests and theoretical analyses. In this study, the reinstallation of the flat base footing, fusimform spudcan footing and skirted footing near existing footprints are simulated using the coupled Eulerian−Lagrangian (CEL) method. The effects of footprints’ geometry, reinstallation eccentricity (0.25<i>D</i>−2.0<i>D</i>) and the roughness between spudcan and soil on the profiles of the vertical force, horizontal force and bending moment are discussed. The results show that the friction condition of the soil−footing interface has a significant effect on <i>H</i> profile but much less effect on <i>M</i> profile. The eccentricity ratio is a key factor to evaluate the <i>H</i> and <i>M</i>. The results show that the geometry shape of the footing also has certain effects on the <i>V</i>, <i>H,</i> and <i>M</i> profiles. The flat base footing gives the lowest peak value in <i>H</i> but largest in <i>M</i>, and the performances of the fusiform spudcan footing and the skirted footing are similar. From the view of the resultant forces, the skirted footing shows a certain potential in resisting the damage during reinstallation near existing footprints by comparing with commonly used fusiform spudcan footings. The bending moments on the leg−hull connection section of different leg length at certain offset distances are discussed. |
| first_indexed | 2024-12-20T05:35:02Z |
| format | Article |
| id | doaj.art-c78ff56909a949409884c8c4cc3d1a07 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-12-20T05:35:02Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-c78ff56909a949409884c8c4cc3d1a072022-12-21T19:51:39ZengMDPI AGJournal of Marine Science and Engineering2077-13122019-06-017617510.3390/jmse7060175jmse7060175Finite Element Analysis and Parametric Study of Spudcan Footing Geometries Penetrating Clay Near Existing FootprintsLong Yu0Heyue Zhang1Jing Li2Xian Wang3State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, ChinaMost existing research on the stability of spudcans during reinstallation nearing footprints is based on centrifuge tests and theoretical analyses. In this study, the reinstallation of the flat base footing, fusimform spudcan footing and skirted footing near existing footprints are simulated using the coupled Eulerian−Lagrangian (CEL) method. The effects of footprints’ geometry, reinstallation eccentricity (0.25<i>D</i>−2.0<i>D</i>) and the roughness between spudcan and soil on the profiles of the vertical force, horizontal force and bending moment are discussed. The results show that the friction condition of the soil−footing interface has a significant effect on <i>H</i> profile but much less effect on <i>M</i> profile. The eccentricity ratio is a key factor to evaluate the <i>H</i> and <i>M</i>. The results show that the geometry shape of the footing also has certain effects on the <i>V</i>, <i>H,</i> and <i>M</i> profiles. The flat base footing gives the lowest peak value in <i>H</i> but largest in <i>M</i>, and the performances of the fusiform spudcan footing and the skirted footing are similar. From the view of the resultant forces, the skirted footing shows a certain potential in resisting the damage during reinstallation near existing footprints by comparing with commonly used fusiform spudcan footings. The bending moments on the leg−hull connection section of different leg length at certain offset distances are discussed.https://www.mdpi.com/2077-1312/7/6/175spudcanskirted footingfootprintjack-upclaylarge deformation analysis |
| spellingShingle | Long Yu Heyue Zhang Jing Li Xian Wang Finite Element Analysis and Parametric Study of Spudcan Footing Geometries Penetrating Clay Near Existing Footprints Journal of Marine Science and Engineering spudcan skirted footing footprint jack-up clay large deformation analysis |
| title | Finite Element Analysis and Parametric Study of Spudcan Footing Geometries Penetrating Clay Near Existing Footprints |
| title_full | Finite Element Analysis and Parametric Study of Spudcan Footing Geometries Penetrating Clay Near Existing Footprints |
| title_fullStr | Finite Element Analysis and Parametric Study of Spudcan Footing Geometries Penetrating Clay Near Existing Footprints |
| title_full_unstemmed | Finite Element Analysis and Parametric Study of Spudcan Footing Geometries Penetrating Clay Near Existing Footprints |
| title_short | Finite Element Analysis and Parametric Study of Spudcan Footing Geometries Penetrating Clay Near Existing Footprints |
| title_sort | finite element analysis and parametric study of spudcan footing geometries penetrating clay near existing footprints |
| topic | spudcan skirted footing footprint jack-up clay large deformation analysis |
| url | https://www.mdpi.com/2077-1312/7/6/175 |
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