Modelling of monopile-footing foundation system for offshore structures

Arshi, H.S., Stone, K.J.L., Vaziri, M., Newson, T.A., El-Marassi, M., Taylor, R.N. & Goodey, R.J. (2013). Modelling of monopile-footing foundation system for offshore structures. Paper presented at the 18th International Conference on Soil Mechanics and Geotechnical Engineering, 02-05 Sep 2013, Paris, France.

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Abstract

While monopiles have proven to be an economically sound foundation solution for wind turbines, especially in relatively shallow water, their installation in deeper water and in hard ground may require a more complex foundation design in order to satisfy the loading conditions. One approach is that foundation systems are developed which combine several foundation elements to create a ‘hybrid’ system. In this way it is possible to develop a foundation system which is more efficient for the combination of vertical and lateral loads associated with wind turbines while maintaining the efficiency and simplicity of the design. Previous studies have reported the results of single gravity tests of the hybrid system where the benefits of adding the footing to the pile are illustrated. This paper presents experimental results on the performance of skirted and unskirted monopile-footings. A simplified design approach based on conventional lateral pile analysis is presented.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/14524

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