Abstract
The contribution of soil damping to the overall damping of offshore wind turbine structures has proven to be elusive. The strain-dependent soil stiff-ness and material damping can be quantified from small-scale element tests but applying the results from these tests in an integrated structural model requires a realistic assessment of the shear strains in the subsoil (Kagawa and Kraft, 1980). Recent developments in pile-soil interaction modelling for large-diameter monopiles (Byrne et al, 2017) have led to more accurate models of pile response under operational loads. Moreover, field measure-ments of offshore wind turbine foundations before installation of the su-perstructure are available which allow improved identification of the effect of soil damping. Applying the conventional pile-soil interaction modelling did not provide a satisfactory explanation for the differences in soil damp-ing.
This paper applies improved pile-soil interaction modelling with site-specific soil parameters to three different offshore monopile foundations for a Belgian offshore wind project to identify whether the improved mod-els can explain the differences in measured soil damping. The results show the influence of the pile-soil interaction modelling on the derived soil damping.
This paper applies improved pile-soil interaction modelling with site-specific soil parameters to three different offshore monopile foundations for a Belgian offshore wind project to identify whether the improved mod-els can explain the differences in measured soil damping. The results show the influence of the pile-soil interaction modelling on the derived soil damping.
Original language | English |
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Title of host publication | Proceedings of the 2nd Vietnam Symposium on Advances in Offshore Engineering. VSOE2021 2021 |
Editors | Dat Vu Huynh, Anh Minh Tang, Dinh Hong Doan, Phil Watson |
Publisher | Springer, Singapore |
Pages | 441-448 |
Number of pages | 7 |
ISBN (Electronic) | 978-981-16-7735-9 |
ISBN (Print) | 978-981-16-7734-2 |
DOIs | |
Publication status | Published - 2021 |
Event | 2nd Vietnam Symposium on Advances in Offshore Engineering - Ho Chi Minh City, Ho Chi Minh City, Viet Nam Duration: 1 Nov 2022 → 3 Nov 2022 |
Publication series
Name | Lecture Notes in Civil Engineering |
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Publisher | Springer |
Volume | 208 |
ISSN (Print) | 2366-2557 |
ISSN (Electronic) | 2366-2565 |
Conference
Conference | 2nd Vietnam Symposium on Advances in Offshore Engineering |
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Country | Viet Nam |
City | Ho Chi Minh City |
Period | 1/11/22 → 3/11/22 |
Keywords
- monopile
- damping
- geotechnics