An assessment was performed to understand the effect of scour on the utilisation of the wind farm pile. This assessment used a finite element approach to model the response of the pile and the nonlinear effect of the soil support.
Comparisons were initially performed between the results presented in the original design report and those from a model representing the ‘as built’ condition. This demonstrated comparable utilisations against buckling, based on an assessment to code. A version of this model was then created using updated soil support properties, which represented the scour as observed in the previous year. This reduced the length of pile embedded considerably when compared to the ‘as built’ model.