Numerical Investigations on the Long-Term Behaviour of Suction-Caisson Foundations under High-Cyclic Loading
Numerical Investigations on the Long-Term Behaviour of Suction-Caisson Foundations under High-Cyclic Loading
In this article, hydro-mechanically coupled finite element (FE) simulations are presented on a suction caisson foundation subjected to high-cyclic vertical loading. The numerical methods are validated by recalculating a centrifuge model test on the critically loaded caisson of a multi-foundation. The behaviour of Baskarp sand under the high-cyclic loading of more than 5,000 cycles, including critical storm events, is predicted numerically using the high-cycle accumulation model in combination with hypoplasticity with intergranular strain. The trend of permanent settlement of the foundation observed in the model tests can be well reproduced by the simulations. It is shown that the pore water pressure plays a decisive role in the load transfer during a storm event highlighting the influence of the drainage conditions on the long-term behaviour of the foundation.
Lisa Tschirschky; P. Staubach; J. Machacek; B. Bienen; T. Wichtmann
5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)
11 - Suction installed foundations and anchors
https://doi.org/10.53243/ISFOG2025-195
Contact Information
- Secretary General - Dr A M McNamara
- Email: [email protected]
- Phone: +44 20 7040 8154
- City, University of London
- Northampton Square
- London EC1V 0HB. United Kingdom