Numerical investigation of offshore foundation on liquefiable sands
Author(s)
Imansyah, MR
Taborda, David
Hau, KW
Chen, L
Hosseini-Kamal, R
Type
Conference Paper
Abstract
This study investigates the seismic response of shallow foundations resting on liquefiable sand deposits, with the aim of providing insights into the expected behaviour of Wind Turbine Installation Vessels (WTIV) when subjected to earthquake loading. A detailed calibration strategy based on commonly available ground information is outlined for Nevada sand, with a detailed characterisation of the model performance being undertaken in terms of CSR, stiffness degradation, and damping ratio curves. Subsequent validation process is also provided by
simulating centrifuge experiments of footings resting on liquefiable deposits. Lastly, three-dimensional finite element analyses of a WTIV are performed employing the calibrated UBC3D-PLM parameters. The impact of soil liquefaction on the response of the WTIV is investigated, with particular emphasis given to the additional settlements caused by the seismic loading.
simulating centrifuge experiments of footings resting on liquefiable deposits. Lastly, three-dimensional finite element analyses of a WTIV are performed employing the calibrated UBC3D-PLM parameters. The impact of soil liquefaction on the response of the WTIV is investigated, with particular emphasis given to the additional settlements caused by the seismic loading.
Date Issued
2025-09-16
Date Acceptance
2025-09-15
Citation
20th International Conference: The Jack-up Platform, 2025
Journal / Book Title
20th International Conference: The Jack-up Platform
Copyright Statement
© 2025 The Author(s).
Source
20th International Conference: The Jack-up Platform
Publication Status
Published
Start Date
2025-09-16
Finish Date
2025-09-17
Coverage Spatial
London, UK