FINITE ELEMENT ANALYSIS OF SKIRTED CAISSONS SUPPORTING OFFSHORE WIND TURBINES CONSIDERING SOIL/CAISSON INTERFACE
FINITE ELEMENT ANALYSIS OF SKIRTED CAISSONS SUPPORTING OFFSHORE WIND TURBINES CONSIDERING SOIL/CAISSON INTERFACE
Today, the use of skirted caissons for supporting offshore wind turbines (OWTs) has emerged as a potential alternative to address various issues linked to large-diameter monopiles such as high construction, manufacturing, and installation costs. In this conference paper an approach called Fourier Series Aided Finite Element Method (FSAFEM) is employed to study an embedded skirted caisson subjected to a monotonic horizontal and moment loading. The horizontal, rocking and coupled modes of displacements, are examined in the light of stiffness factors with two distinct soil/caisson interface states. The study is conducted in a non-homogeneous soil where the shear modulus is characterized by a power law variation with depth. The results, presented graphically, illustrate stiffness coefficients for three soil stiffness profiles and two different soil-caisson interface conditions: perfectly rough and perfectly smooth. These findings provide valuable insights for estimating stiffness coefficients in real-world engineering applications.
Djillali Amar Boouzid
18th African Regional Conference on Soil Mechanics and Geotechnical Engineering (ARCSMGE2024)
Behavior of soils, analysis and modeling
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