Numerical investigation on induced liquefaction during monopile installation by vibratory driving in a 1G scale test
Numerical investigation on induced liquefaction during monopile installation by vibratory driving in a 1G scale test
The successful deployment of Offshore Wind Turbines (OWTs) requires fast, low- cost, reliable and environmentally friendly foundation installation methods. Vibratory driving, which is an attractive alternative to impact driving, has recently showed great potential in real-world applications. However, the knowledge about its effects on soil properties, and thus on the response of OWTs during the installation of monopiles is still limited. This study focuses on investigating the soil liquefaction which occurs in the vicinity of the foundation during vibratory monopile driving, in a 1G scale test. The combined approach of a vibratory driven pile in the laboratory, by introducing pertinent scaling laws, and the use of a numerical model to simulate the scale model in the laboratory is adopted. The findings from the numerical model provide insight into liquefaction initiation and progression and highlight the potential and limitations of linear models.
Tamara Wehbe; George Anoyatis; Hadrien Rattez; Stijn Francois
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
E - Environment, water and energy
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