In this article, current research findings of local scour at offshore windfarm monopile foundations are presented. The mechanisms and depth prediction formulas under different hydrodynamic conditions summarized, including the current-only condition, wave-only combined wave-current complex dynamic condition. Furthermore, article analyzes influencing factors on basis classical equations for predi...

Most offshore wind turbines (OWTs) are supported by large-diameter monopiles, installed impact driving. OWTs dynamically sensitive structures, with a narrow design range for the eigenfrequency. Fatigue and serviceability limit states can be critical in design, so foundation stiffness plays an important role. The pile installation process results changes to soil state, investigated here through ...

Monopile foundations supporting offshore wind turbines are exposed to cyclic lateral loading, which can cause accumulated pile displacement or rotation and evolution of the dynamic response. To inform development improved design methods, monopile’s response loading has been explored through small-scale physical modeling at 1g in centrifuge, as well large-scale field. There advantages disadvanta...

Offshore monopiles accumulate permanent tilt under long-lasting cyclic environmental loads. Accurate prediction of monopile is key to assessing their serviceability, and requires a fundamental understanding loading history effects. While both experimental numerical studies are shedding light on this matter, work uses step-by-step implicit 3D FE modelling investigate effects in the response late...