Numerical modelling of the effects of consolidation on jack-up spudcan penetration

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Abstract

© 2016 Elsevier Ltd. The paper addresses the issue of consolidation around jack-up foundations in carbonate silty clay. The problem is tackled with the numerical implementation of a hypoplastic model for structured clays, within the framework of large deformation finite element analyses. Coupled analyses are simulated to account for excess pore pressure build-up and dissipation, while sensitivity parameters capture the effects of remoulding. The model implementation is described first, followed by its validation against centrifuge data. The paper concludes with a detailed discussion of beneficial or detrimental effects on spudcan capacity upon re-penetration, depending on the consolidation and soil sensitivity characteristics.
Original languageEnglish
Pages (from-to)25-37
Number of pages13
JournalComputers and Geotechnics
Volume78
DOIs
Publication statusPublished - Sep 2016

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Jacks
Consolidation
consolidation
Clay
penetration
silty clay
Pore pressure
Centrifuges
centrifuge
pore pressure
modeling
Carbonates
dissipation
Soils
carbonate
clay
soil
effect
parameter

Cite this

@article{bc3cd5af9e6f460ea9bb686420cb4546,
title = "Numerical modelling of the effects of consolidation on jack-up spudcan penetration",
abstract = "{\circledC} 2016 Elsevier Ltd. The paper addresses the issue of consolidation around jack-up foundations in carbonate silty clay. The problem is tackled with the numerical implementation of a hypoplastic model for structured clays, within the framework of large deformation finite element analyses. Coupled analyses are simulated to account for excess pore pressure build-up and dissipation, while sensitivity parameters capture the effects of remoulding. The model implementation is described first, followed by its validation against centrifuge data. The paper concludes with a detailed discussion of beneficial or detrimental effects on spudcan capacity upon re-penetration, depending on the consolidation and soil sensitivity characteristics.",
author = "R. Ragni and Dong Wang and D. Maš{\'i}n and Britta Bienen and Cassidy, {Mark J.} and Stanier, {Sam A.}",
year = "2016",
month = "9",
doi = "10.1016/j.compgeo.2016.05.002",
language = "English",
volume = "78",
pages = "25--37",
journal = "Computers and Geotechnics",
issn = "0266-352X",
publisher = "Elsevier",

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T1 - Numerical modelling of the effects of consolidation on jack-up spudcan penetration

AU - Ragni, R.

AU - Wang, Dong

AU - Mašín, D.

AU - Bienen, Britta

AU - Cassidy, Mark J.

AU - Stanier, Sam A.

PY - 2016/9

Y1 - 2016/9

N2 - © 2016 Elsevier Ltd. The paper addresses the issue of consolidation around jack-up foundations in carbonate silty clay. The problem is tackled with the numerical implementation of a hypoplastic model for structured clays, within the framework of large deformation finite element analyses. Coupled analyses are simulated to account for excess pore pressure build-up and dissipation, while sensitivity parameters capture the effects of remoulding. The model implementation is described first, followed by its validation against centrifuge data. The paper concludes with a detailed discussion of beneficial or detrimental effects on spudcan capacity upon re-penetration, depending on the consolidation and soil sensitivity characteristics.

AB - © 2016 Elsevier Ltd. The paper addresses the issue of consolidation around jack-up foundations in carbonate silty clay. The problem is tackled with the numerical implementation of a hypoplastic model for structured clays, within the framework of large deformation finite element analyses. Coupled analyses are simulated to account for excess pore pressure build-up and dissipation, while sensitivity parameters capture the effects of remoulding. The model implementation is described first, followed by its validation against centrifuge data. The paper concludes with a detailed discussion of beneficial or detrimental effects on spudcan capacity upon re-penetration, depending on the consolidation and soil sensitivity characteristics.

U2 - 10.1016/j.compgeo.2016.05.002

DO - 10.1016/j.compgeo.2016.05.002

M3 - Article

VL - 78

SP - 25

EP - 37

JO - Computers and Geotechnics

JF - Computers and Geotechnics

SN - 0266-352X

ER -