The Effects of Installation on the Elastic Stiffness Coefficients of Spudcan Foundations
Subjected to pre-load, spudcan foundations, widely utilized to support offshore jack-up rigs, may penetrate in a few diameters into soft clays before mobilizing sufficient resistance from soil. While its stress–strain behavior is known to be affected by the embedment condition and soil backflow, the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/9/4/429 |
| _version_ | 1797537586524192768 |
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| author | Wen-Long Lin Zhen Wang Fei Liu Jiang-Tao Yi |
| author_facet | Wen-Long Lin Zhen Wang Fei Liu Jiang-Tao Yi |
| author_sort | Wen-Long Lin |
| collection | DOAJ |
| description | Subjected to pre-load, spudcan foundations, widely utilized to support offshore jack-up rigs, may penetrate in a few diameters into soft clays before mobilizing sufficient resistance from soil. While its stress–strain behavior is known to be affected by the embedment condition and soil backflow, the small-strain calculation with wished-in-place assumption was previously adopted to analyze its elastic stiffness coefficients. This study takes advantage of a recently developed dual-stage Eulerian–Lagrangian (DSEL) technique to re-evaluate the elastic stiffness coefficients of spudcans after realistically modelling the deep, continuous spudcan penetration. A numerical parametric exercise is conducted to investigate the effects of strength non-homogeneity, embedment depths, and the spudcan’s size on the elastic stiffness. On these bases, an expression is provided such that the practicing engineers can conveniently factor the installation effects into the estimation of elastic stiffness coefficients of spudcans. |
| first_indexed | 2024-03-10T12:17:17Z |
| format | Article |
| id | doaj.art-5ad2d2ce99e34a789b86dfb6b16e734d |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T12:17:17Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-5ad2d2ce99e34a789b86dfb6b16e734d2023-11-21T15:45:02ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-04-019442910.3390/jmse9040429The Effects of Installation on the Elastic Stiffness Coefficients of Spudcan FoundationsWen-Long Lin0Zhen Wang1Fei Liu2Jiang-Tao Yi3School of Civil Engineering, Chongqing University, No. 83 Shabei Street, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, No. 83 Shabei Street, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, No. 83 Shabei Street, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, No. 83 Shabei Street, Chongqing 400045, ChinaSubjected to pre-load, spudcan foundations, widely utilized to support offshore jack-up rigs, may penetrate in a few diameters into soft clays before mobilizing sufficient resistance from soil. While its stress–strain behavior is known to be affected by the embedment condition and soil backflow, the small-strain calculation with wished-in-place assumption was previously adopted to analyze its elastic stiffness coefficients. This study takes advantage of a recently developed dual-stage Eulerian–Lagrangian (DSEL) technique to re-evaluate the elastic stiffness coefficients of spudcans after realistically modelling the deep, continuous spudcan penetration. A numerical parametric exercise is conducted to investigate the effects of strength non-homogeneity, embedment depths, and the spudcan’s size on the elastic stiffness. On these bases, an expression is provided such that the practicing engineers can conveniently factor the installation effects into the estimation of elastic stiffness coefficients of spudcans.https://www.mdpi.com/2077-1312/9/4/429spudcanstiffnessreductionfinite element analysisdual-stage Eulerian–Lagrangian technique |
| spellingShingle | Wen-Long Lin Zhen Wang Fei Liu Jiang-Tao Yi The Effects of Installation on the Elastic Stiffness Coefficients of Spudcan Foundations Journal of Marine Science and Engineering spudcan stiffness reduction finite element analysis dual-stage Eulerian–Lagrangian technique |
| title | The Effects of Installation on the Elastic Stiffness Coefficients of Spudcan Foundations |
| title_full | The Effects of Installation on the Elastic Stiffness Coefficients of Spudcan Foundations |
| title_fullStr | The Effects of Installation on the Elastic Stiffness Coefficients of Spudcan Foundations |
| title_full_unstemmed | The Effects of Installation on the Elastic Stiffness Coefficients of Spudcan Foundations |
| title_short | The Effects of Installation on the Elastic Stiffness Coefficients of Spudcan Foundations |
| title_sort | effects of installation on the elastic stiffness coefficients of spudcan foundations |
| topic | spudcan stiffness reduction finite element analysis dual-stage Eulerian–Lagrangian technique |
| url | https://www.mdpi.com/2077-1312/9/4/429 |
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