Abstract
The soil-structure stiffness of monopile foundations for offshore wind turbines has a high impact on the fatigue loading during normal operating conditions. Thus, a robust design must consider the evolution of pile-soil stiffness over the lifetime of the wind farm. This paper present and discuss full-scale measurements obtained from one offshore wind turbine structure located within Horns Reef II offshore wind farm. Data are presented for a 2.5 years period and covers normal operating conditions and one larger storm event. A reduction of the pile-soil stiffness was observed during the storm events, followed by a complete regain to a pre-storm level when the storm subsided. In additional, no long term variations of the pile-soil stiffness was observed. The wind turbine is located in dense to very dense sand deposits.
Originalsprog | Engelsk |
---|---|
Titel | Frontiers in Offshore Geotechnics III - Proceedings of the 3rd International Symposium on Frontiers in Offshore Geotechnics, ISFOG 2015 |
Antal sider | 6 |
Forlag | CRC Press |
Publikationsdato | 2015 |
Sider | 717-722 |
ISBN (Trykt) | 978-1-138-02848-7 |
ISBN (Elektronisk) | 978-1-315-67551-0 |
DOI | |
Status | Udgivet - 2015 |
Begivenhed | The 3rd Internationl symposium on Frontiers in offshore Geotechnics - Oslo, Norge Varighed: 10 jun. 2015 → 12 jun. 2015 Konferencens nummer: 3 |
Konference
Konference | The 3rd Internationl symposium on Frontiers in offshore Geotechnics |
---|---|
Nummer | 3 |
Land/Område | Norge |
By | Oslo |
Periode | 10/06/2015 → 12/06/2015 |