For offshore wind turbines (OWTs), the monopile comprises the most common type of foundation and vibratory driving is one of the main techniques for monopile installation (and decommissioning). In practice, prior to pile installation, a pile driving analysis is performed to select the appropriate installation device and the relevant settings. However, pile penetration results from a complicated vibrator-pile-soil interaction and better understanding of the latter is necessary for an efficient installation process. During the course of installation, the interface and boundary conditions of the pile continuously alter due to the soil layering and the non-linearity of the soil reaction. In this paper, a set of experimental data from an onshore experimental campaign are employed in a numerical scheme to identify the pile strain field based on in vacuo modes of simpler yet related systems. By mapping the pile strain field onto physically-based shape functions, the evolution of the soil reaction during pile installation can be studied, in order to facilitate the back-analysis of driving records and, by extension, improve pile drivability and vibro-acoustics predictions.
|Title of host publication||Recent Trends in Wave Mechanics and Vibrations - Proceedings of WMVC 2022|
|Editors||Zuzana Dimitrovová, Rodrigo Gonçalves, Zuzana Dimitrovová, Paritosh Biswas, Tiago Silva|
|Place of Publication||Cham|
|Number of pages||10|
|Publication status||Published - 2023|
|Event||10th International Conference on Wave Mechanics and Vibrations, WMVC 2022 - Lisbon, Portugal|
Duration: 4 Jul 2022 → 6 Jul 2022
|Name||Mechanisms and Machine Science|
|Conference||10th International Conference on Wave Mechanics and Vibrations, WMVC 2022|
|Period||4/07/22 → 6/07/22|
Bibliographical noteGreen Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
- Pile driving
- Soil-structure interaction
- Vibrations of shells