Numerical prediction of the installation of vibratory monopile foundations for offshore wind energy projects
Numerical prediction of the installation of vibratory monopile foundations for offshore wind energy projects
Despite the extensive research and advancements in installation methods and practises in the past few decades, there exist knowledge gaps regarding the numerical prediction of monopile installation in offshore settings. Efforts have been undertaken to develop and validate a computational tool that can effectively predict the installation behaviour of offshore monopiles. This study presents an enhancement to the classical Material Point Method (MPM), a numerical technique that can effectively simulate extensive material movements. The proposed upgrade involves the adoption of the Convected Particle Domain Interpolation (CPDI) method, which is capable of accurately capturing particle shear. The method has been extended to include pore fluid in order to simulate the saturated behaviour of the soil. The UBCSAND model, which incorporates both soil fluidisation behaviour and hardening/softening behaviour during dynamic loading, was utilised to simulate an offshore monopile. The evaluation of the model's performance is carried out through a comparison between the computed results and the field data gathered from the VISSKA project, which carried out in the North Sea.
Shreyas Giridharan; Dieter Stolle; Christian Moormann
10th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2023)
2. Finite element, finite difference, discrete element, material point and other methods
https://doi.org/10.53243/NUMGE2023-386
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