From cyclic sand ratcheting to tilt accumulation of offshore monopiles: 3D FE modelling using SANISAND-MS

Simple item page
dc.coverageDOI: 10.1680/jgeot.20.P.029
dc.creatorLiu, Haoyuan
dc.creatorKementzetzidis, Evangelos
dc.creatorAbell, José Antonio
dc.creatorPisanò, Federico
dc.date2021
dc.date.accessioned05-01-2026 18:04
dc.date.available05-01-2026 18:04
dc.description<p>Serviceability criteria for offshore monopiles include the estimation of long-term, permanent tilt under repeated operational loads. In the lack of well-established analysis methods, experimental and numerical research has been carried out in the last decade to support the fundamental understanding of monopile-soil interaction mechanisms, and the conception of engineering methods for monopile tilt predictions. With a focus on the case of monopiles in sand, this work shows how step-by-step/implicit, three-dimensional (3D) finite-element (FE) modelling can be fruitfully applied to the analysis of cyclic monopile-soil interaction and related soil deformation mechanisms. To achieve adequate simulation of cyclic sand ratcheting and densification around the pile, the recently proposed SANISAND-MS model is adopted. The link between local soil behaviour and global monopile response to cyclic loading is discussed through detailed analysis of model prediction. Overall, the results of numerical parametric studies confirm that the proposed 3D FE modelling framework can reproduce relevant experimental evidence about monopile-soil interaction, and support future improvement of engineering design methods.</p>eng
dc.descriptionServiceability criteria for offshore monopiles include the estimation of long-term, permanent tilt under repeated operational loads. In the lack of well-established analysis methods, experimental and numerical research has been carried out in the last decade to support the fundamental understanding of monopile-soil interaction mechanisms, and the conception of engineering methods for monopile tilt predictions. With a focus on the case of monopiles in sand, this work shows how step-by-step/implicit, three-dimensional (3D) finite-element (FE) modelling can be fruitfully applied to the analysis of cyclic monopile-soil interaction and related soil deformation mechanisms. To achieve adequate simulation of cyclic sand ratcheting and densification around the pile, the recently proposed SANISAND-MS model is adopted. The link between local soil behaviour and global monopile response to cyclic loading is discussed through detailed analysis of model prediction. Overall, the results of numerical parametric studies confirm that the proposed 3D FE modelling framework can reproduce relevant experimental evidence about monopile-soil interaction, and support future improvement of engineering design methods. © 2021 Thomas Telford Ltd.spa
dc.identifierhttps://investigadores.uandes.cl/en/publications/6e470342-a442-4855-9a73-cd14673aba2c
dc.languageeng
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.sourcevol.72 (2021) nr.9 p.753-768
dc.subjectconstitutive relations
dc.subjectfinite-element modelling
dc.subjectfootings/foundations
dc.subjectoffshore engineering
dc.subjectrepeated loading
dc.titleFrom cyclic sand ratcheting to tilt accumulation of offshore monopiles: 3D FE modelling using SANISAND-MSeng
dc.typeArticleeng
dc.typeArtículospa
Files
Collections
Pure-CRIS