Centrifuge modelling considerations of laterally loaded monopiles in sand
Rasmus Tofte Klinkvort (Norwegian Geotechnical Institute)
Britta Bienen (University of Western Australia)
Shengsheng Fan (Fugro , University of Western Australia)
Jonathan Black (Queen's University Belfast, University of Sheffield)
Steven Bayton (Norwegian Geotechnical Institute, University of Sheffield)
Luc Thorel (Université Paris Cité)
Matthieu Blanc (Université Paris Cité)
Amin Askarinejad (TU Delft - Civil Engineering & Geosciences)
Qiang Li (TU Delft - Civil Engineering & Geosciences, PowerChina Huadong Engineering Corporation Limited)
More Authors
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
The large-diameter monopile is a commonly used foundation concept for offshore wind turbines. The advantages of geometrical simplicity and reliable performance make it often the most attractive solution. Despite the concept’s high popularity, optimisation of the current design models can still be made. To address fundamental understanding of modelling effects in centrifuge testing of laterally loaded monopiles in sand, a large coordinated centrifuge-testing programme across nine different centrifuge centres worldwide has been conducted. This paper presents firstly the results of a local benchmark modelling of model test series performed in two centrifuges and secondly the results of global benchmark testing across the nine centrifuges. The results highlight the reliability of centrifuge testing as it was possible to model a similar prototype response in both the local and global benchmark tests, despite differences in the experimental setups and pile geometries. Furthermore, as examples of the modelling technique, two different cases are presented, one showing the effect of installation and one showing the effect of pile penetration depth. Finally, recommendations are provided to enhance centrifuge testing of monopile response under complex loading.
help_outline