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Numerical investigations for the pile foundation of an offshore wind turbine under transient lateral load

  • Numerical analysis can be useful for the investigation of important aspects of offshore foundation prototypes that otherwise could hardly be studied experimentally, like the evolution of pore-water pressure around the monopile foundation of an offshore wind turbine under extreme loading. A combination of mixed pressuredisplacement formulations along with a constitutive model for sands based on the Generalized Plasticity Theory can replicate accurately the soil behaviour in saturated conditions. However, additional issues must be taken into account in order to perform numerical simulations of offshore piles. Some implications of the Babuska-Brezzi restriction, as well as considerations about the pile-soil interface and suitable solution strategies are discussed here. Due to the high cost of the transient analysis, the parallel computation offers a promising perspective, but can be complex and needs to be implemented carefully in order to avoid a performance deterioration. ANumerical analysis can be useful for the investigation of important aspects of offshore foundation prototypes that otherwise could hardly be studied experimentally, like the evolution of pore-water pressure around the monopile foundation of an offshore wind turbine under extreme loading. A combination of mixed pressuredisplacement formulations along with a constitutive model for sands based on the Generalized Plasticity Theory can replicate accurately the soil behaviour in saturated conditions. However, additional issues must be taken into account in order to perform numerical simulations of offshore piles. Some implications of the Babuska-Brezzi restriction, as well as considerations about the pile-soil interface and suitable solution strategies are discussed here. Due to the high cost of the transient analysis, the parallel computation offers a promising perspective, but can be complex and needs to be implemented carefully in order to avoid a performance deterioration. A brief overview on current trends and functional software is given here.zeige mehrzeige weniger

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Metadaten
Autor*innen:Pablo Cuéllar, M. Pastor, P. Mira, J.A. Fernández-Merodo, Matthias Baeßler, Werner Rücker
Persönliche Herausgeber*innen:T. Benz, S. Nordal
Dokumenttyp:Beitrag zu einem Sammelband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Numerical methods in geotechnical engineering (NUMGE 2010)
Jahr der Erstveröffentlichung:2010
Verlag:Taylor & Francis
Erste Seite:913
Letzte Seite:919
Freie Schlagwörter:Cyclic lateral load; Offshore pile foundation; Pore pressure accumulation
Veranstaltung:7th European conference on numerical methods in geotechnical engineering (NUMGE 2010)
Veranstaltungsort:Trondheim, Norway
Beginndatum der Veranstaltung:2010-06-02
Enddatum der Veranstaltung:2010-06-04
ISBN:978-0-415-59239-0
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
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