Zachert, Hauke ; Wichtmann, Torsten ; Triantafyllidis, Theodoros ; Hartwig, Udo (2015)
Simulation of a full-scale test on a gravity base foundation for offshore wind turbines using a high cycle accumulation model.
Third International Symposium on Frontiers in Offshore Geotechnics (ISFOG 2015). Oslo (10.-12.06.2015)
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Offshore wind turbines are generally founded on piles (monopile, tripod, jacket) or gravity base foundations. Up to now, there is a lack of standardised analysis procedures for such foundations, especially for the serviceability limit state. Therefore, a full-scale test on a gravity base foundation for an offshore wind turbine has been performed near shore in a flooded construction pit. The test foundation was subjected to about 1.5 million load cycles. The foundation and the subsoil have been extensively instrumented so that a large amount of measured data on the cyclic soil-structure interaction were gained. Meanwhile, a numerical procedure for the proof of serviceability for offshore wind turbine foundations was developed. The procedure is based on Finite Element calculations (FE) in combination with a High Cycle Accumulation (HCA) model. The application of the HCA model for the prediction of the foundation settlements during the full-scale model tests is described in this contribution.The determination of the required input parameters is influenced by the execution and interpretation of in situ or laboratory tests. In order to quantify the influence on the predicted settlement, amongst others, different procedures for the determination of the HCA model parameters were compared. The settlements, pore water pressures and soil pressures predicted by the HCA model were compared to the measurements.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Zachert, Hauke ; Wichtmann, Torsten ; Triantafyllidis, Theodoros ; Hartwig, Udo |
| Art des Eintrags: | Bibliographie |
| Titel: | Simulation of a full-scale test on a gravity base foundation for offshore wind turbines using a high cycle accumulation model |
| Sprache: | Englisch |
| Publikationsjahr: | 2015 |
| Ort: | London |
| Verlag: | Taylor & Francis Group |
| Buchtitel: | Frontiers in Offshore Geotechnics III |
| Veranstaltungstitel: | Third International Symposium on Frontiers in Offshore Geotechnics (ISFOG 2015) |
| Veranstaltungsort: | Oslo |
| Veranstaltungsdatum: | 10.-12.06.2015 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Offshore wind turbines are generally founded on piles (monopile, tripod, jacket) or gravity base foundations. Up to now, there is a lack of standardised analysis procedures for such foundations, especially for the serviceability limit state. Therefore, a full-scale test on a gravity base foundation for an offshore wind turbine has been performed near shore in a flooded construction pit. The test foundation was subjected to about 1.5 million load cycles. The foundation and the subsoil have been extensively instrumented so that a large amount of measured data on the cyclic soil-structure interaction were gained. Meanwhile, a numerical procedure for the proof of serviceability for offshore wind turbine foundations was developed. The procedure is based on Finite Element calculations (FE) in combination with a High Cycle Accumulation (HCA) model. The application of the HCA model for the prediction of the foundation settlements during the full-scale model tests is described in this contribution.The determination of the required input parameters is influenced by the execution and interpretation of in situ or laboratory tests. In order to quantify the influence on the predicted settlement, amongst others, different procedures for the determination of the HCA model parameters were compared. The settlements, pore water pressures and soil pressures predicted by the HCA model were compared to the measurements. |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut für Geotechnik |
| Hinterlegungsdatum: | 18 Dez 2020 11:22 |
| Letzte Änderung: | 18 Dez 2020 11:22 |
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