The Effects of Installation on the Elastic Stiffness Coefficients of Spudcan Foundations
Autor: | Liu Fei, Yi Jiangtao, Wen-Long Lin, Wang Zhen |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
spudcan
0211 other engineering and technologies 020101 civil engineering Ocean Engineering reduction 02 engineering and technology finite element analysis 0201 civil engineering stiffness lcsh:Oceanography lcsh:VM1-989 medicine Geotechnical engineering lcsh:GC1-1581 021101 geological & geomatics engineering Water Science and Technology Civil and Structural Engineering Parametric statistics Backflow Embedment Stiffness lcsh:Naval architecture. Shipbuilding. Marine engineering Finite element method medicine.symptom Reduction (mathematics) dual-stage Eulerian–Lagrangian technique Geology Spudcan |
Zdroj: | Journal of Marine Science and Engineering, Vol 9, Iss 429, p 429 (2021) Journal of Marine Science and Engineering Volume 9 Issue 4 |
ISSN: | 2077-1312 |
Popis: | 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. |
Databáze: | OpenAIRE |
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