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Vertical transient loading of a suction caisson in dense sand
Cerfontaine, Benjamin; Collin, Frédéric; Charlier, Robert
2015In Cerfontaine, Benjamin; Collin, Frédéric; Charlier, Robert (Eds.) Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG
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Keywords :
Offshore Geotechnics; Cyclic modelling; Prevost model
Abstract :
[en] Suction caissons are hollow cylinders open towards the bottom currently used as anchors for deep water offshore facilities. They recently turned out to be advantageously exploited as foundation for offshore wind turbines in shallow water (Senders 2009). The Prevost model for cohesionless soils (Prevost 1985) is adapted for the modelling of their cyclic behaviour. It is able to reproduce plastic deformation in both loading and unloading, contractancy of the soil and pore pressure build up as well. In this paper, a fully-coupled transient axisymmetric analysis of a suction caisson is carried out. The monotonic partially drained behaviour of the caisson is firstly highlighted. Afterwards, pseudo-random and sinusoidal-equivalent storm signals are compared. Permanent displacements accumulated at the end of the storm show a good agreement between them but are slightly divergent, which indicates that the position of the extreme event might be a relevant issue.
Disciplines :
Civil engineering
Author, co-author :
Cerfontaine, Benjamin ;  Université de Liège - ULiège > Département ArGEnCo > Géomécanique et géologie de l'ingénieur
Collin, Frédéric  ;  Université de Liège - ULiège > Département ArGEnCo > Géotechnique
Charlier, Robert ;  Université de Liège - ULiège > Département ArGEnCo > Géomécanique et géologie de l'ingénieur
Language :
English
Title :
Vertical transient loading of a suction caisson in dense sand
Publication date :
2015
Event name :
14th International Conference of the International Association for Computer Methods and Avances in Geomechanics
Event organizer :
Oka, Fusao
Murakami, Akira
Event place :
Kyoto, Japan
Event date :
du 22 septembre 2014 au 25 septembre 2014
Audience :
International
Main work title :
Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG
Editor :
Cerfontaine, Benjamin ;  Université de Liège - ULiège > Département ArGEnCo > Géotechnique
Collin, Frédéric  ;  Université de Liège - ULiège > Urban and Environmental Engineering
Charlier, Robert ;  Université de Liège - ULiège > Département ArGEnCo
Peer reviewed :
Peer reviewed
Funders :
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
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