Theoretical and experimental study of the performance of suction bucket foundation for offshore wind turbines under complex geological and multi-hazard conditions
Grant Data
Project Title
Theoretical and experimental study of the performance of suction bucket foundation for offshore wind turbines under complex geological and multi-hazard conditions
Principal Investigator
Professor Yang, Jun
(Principal Investigator (PI))
Duration
48
Start Date
2024-01-01
Amount
1233750
Conference Title
Theoretical and experimental study of the performance of suction bucket foundation for offshore wind turbines under complex geological and multi-hazard conditions
Keywords
Suction bucket foundation, Centrifuge test, Cyclic load, Accumulative deformation, Liquefaction
Discipline
Geotechnical
Panel
Engineering (E)
HKU Project Code
N_HKU723/23
Grant Type
NSFC/RGC Joint Research Scheme 2023/24
Funding Year
2023
Status
On-going
Objectives
1. Propose an explicit model for predicting accumulated deformation and stiffness degradation of marine clay subjected to a large number of loading cycles, and develop a practical method for predicting the accumulated tilting of the bucket foundation.2. Explore the natural frequency evolution of the structure-bucket foundation system considering the stiffness degradation and anisotropy of marine clay under long-term cyclic loading.3. Investigate the transient dynamic response of the structure-bucket foundation system and its residual tilting under typhoons by a combination of centrifuge tests and dynamic FEM simulations.4. Evaluate the seismic performance of the structure-bucket foundation system in liquefiable silty sand under the combined wind-wave-seismic loadings through centrifuge shaking table tests and dynamic FEM simulations.