Staubach, Patrick ; Machaček, Jan ; Tafili, Merita ; Wichtmann, Torsten (2024)
A high-cycle accumulation model for clay and its application to monopile foundations.
In: Acta Geotechnica, 2022, 17 (3)
doi: 10.26083/tuprints-00026588
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
A high-cycle accumulation (HCA) model predicting the accumulation of permanent strain or excess pore water pressure in clay under a large number of load cycles is presented. Data from an extensive laboratory testing program on kaolin under undrained cyclic loading has been analysed for that purpose. The influence of strain amplitude, void ratio, stress ratio, overconsolidation ratio and loading frequency on the accumulation rates is considered in the constitutive equations of the HCA model. The proposed model is validated first by the simulation of element tests. Subsequently, its application to offshore wind turbine foundations under long-term lateral cyclic loading is presented by the back-analysis of a centrifuge test on a monopile in soft clay. The results are in good accordance with the measurements in terms of pile displacement and bending moment versus number of applied cycles. It is concluded that the proposed model is feasible to describe the long-term behaviour of clay subjected to high-cyclic loading.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Staubach, Patrick ; Machaček, Jan ; Tafili, Merita ; Wichtmann, Torsten |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | A high-cycle accumulation model for clay and its application to monopile foundations |
| Sprache: | Englisch |
| Publikationsjahr: | 26 September 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Ort der Erstveröffentlichung: | Berlin ; Heidelberg |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Acta Geotechnica |
| Jahrgang/Volume einer Zeitschrift: | 17 |
| (Heft-)Nummer: | 3 |
| Kollation: | 22 Seiten |
| DOI: | 10.26083/tuprints-00026588 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/26588 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | A high-cycle accumulation (HCA) model predicting the accumulation of permanent strain or excess pore water pressure in clay under a large number of load cycles is presented. Data from an extensive laboratory testing program on kaolin under undrained cyclic loading has been analysed for that purpose. The influence of strain amplitude, void ratio, stress ratio, overconsolidation ratio and loading frequency on the accumulation rates is considered in the constitutive equations of the HCA model. The proposed model is validated first by the simulation of element tests. Subsequently, its application to offshore wind turbine foundations under long-term lateral cyclic loading is presented by the back-analysis of a centrifuge test on a monopile in soft clay. The results are in good accordance with the measurements in terms of pile displacement and bending moment versus number of applied cycles. It is concluded that the proposed model is feasible to describe the long-term behaviour of clay subjected to high-cyclic loading. |
| Freie Schlagworte: | AVISA model, Clay, High-cycle accumulation model, High-cyclic loading, Offshore wind turbine foundations |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-265882 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Institut für Geotechnik |
| Hinterlegungsdatum: | 26 Sep 2024 12:27 |
| Letzte Änderung: | 27 Sep 2024 06:17 |
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| Suche nach Titel in: | TUfind oder in Google |
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- A high-cycle accumulation model for clay and its application to monopile foundations. (deposited 26 Sep 2024 12:27) [Gegenwärtig angezeigt]
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