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

R. Ragni; Dong Wang; D. Mašín; Britta Bienen; Mark J. Cassidy; Sam A. Stanier

doi:10.1016/j.compgeo.2016.05.002

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

R. Ragni, Dong Wang, D. Mašín, Britta Bienen, Mark J. Cassidy, Sam A. Stanier

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16 Citations (Scopus)

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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 language	English
Pages (from-to)	25-37
Number of pages	13
Journal	Computers and Geotechnics
Volume	78
DOIs	https://doi.org/10.1016/j.compgeo.2016.05.002
Publication status	Published - Sep 2016

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10.1016/j.compgeo.2016.05.002

Ragni et al 2016 Numerical modelling of the effects of consolidation on jack-up spudcan penetration
©2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Accepted author manuscript, 1.75 MBLicence: CC BY-NC-ND

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2 Finished

New Frontiers in Offshore Geotechnics: Securing Australia's Energy Future
Cassidy, M.
Australian Research Council
1/01/14 → 28/02/19
Project: Research
Predicting the Foundation Performance of Offshore Jack Up Drilling Rigs in Intermediate Soils
Bienen, B. & Cassidy, M.
Australian Research Council
1/01/11 → 31/12/16
Project: Research

Cite this

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title = "Numerical modelling of the effects of consolidation on jack-up spudcan penetration",

abstract = "{\textcopyright} 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. Ma{\v s}{\'i}n and Britta Bienen and Cassidy, {Mark J.} and Stanier, {Sam A.}",

year = "2016",

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doi = "10.1016/j.compgeo.2016.05.002",

language = "English",

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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 -

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

Abstract

Access to Document

New Frontiers in Offshore Geotechnics: Securing Australia's Energy Future

Predicting the Foundation Performance of Offshore Jack Up Drilling Rigs in Intermediate Soils

Cite this