Reliability analysis of suction bucket foundation for offshore wind turbine in silty sand

Abstract

In this study, the reliability analysis was carried out for suction bucket foundation considering the uncertainties in soil and structural parameters. In reliability analysis, the vertical and lateral resistances are defined as base limit states. The case studies were carried out using the preliminarily designed foundations at western-south part of sea of Korea. From reliability analyses, vertical resistance for free-slip condition has overall lower reliability index, and submerged unit weight and internal friction angle of seabed soil are governing factors in vertical and lateral resistance in this case. Copyright © Soil Mechanics and Geotechnical Engineering, ARC 2019.All rights reserved.