Centrifuge Modeling of Offshore Monopiles in Sloping Liquefiable Soils: Assessment of Lateral Spreading Effects
Centrifuge Modeling of Offshore Monopiles in Sloping Liquefiable Soils: Assessment of Lateral Spreading Effects
This study examines the dynamic response of monopile-supported offshore wind turbines subjected to seismic excitation and subsequent liquefaction-induced ground deformations, with a particular focus on the effects of lateral spreading. Centrifuge experiments were conducted to investigate monopile performance on a gently sloping ground and compare it with a flat ground monopile response. The results indicated that lateral spreading induced substantial monopile rotation and led to increased superstructure rotation in the sloping ground condition compared to the flat ground condition. These findings highlight the critical role of lateral spreading in the seismic vulnerability of monopile foundations.
Yimo Wu; Amin Barari; Ali Lashgari; Junyu Zhou; W. Y. Hung; Lars Bo Ibsen
11th International Conference on Physical Modelling in Geotechnics (ICPMG2026)
Session 6: Onshore and offshore foundation systems
https://doi.org/10.53243/ICPMG2026-312