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  4. Investigation of anchor installation for floating offshore wind turbines
 
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Investigation of anchor installation for floating offshore wind turbines

Publikationstyp
Conference Paper
Date Issued
2022-09
Sprache
English
Author(s)
Dao, Duy Anh  orcid-logo
Geotechnik und Baubetrieb B-5  
Dicke, Konrad  
Grabe, Jürgen  
Geotechnik und Baubetrieb B-5  
TORE-URI
https://hdl.handle.net/11420/43082
Start Page
482
End Page
485
Citation
10th International Conference on Physical Modelling in Geotechnics (ICPMG 2022) 2022
Contribution to Conference
10th International Conference on Physical Modelling in Geotechnics (ICPMG 2022) 2022  
Publisher Link
https://www.issmge.org/uploads/publications/53/115/P00091.pdf
ISBN
978-89-952197-7-5
With offshore wind turbines being constructed in water depths greater than 40 m, floating offshore wind turbines (FOWT) become more cost-effective than conventionally founded alternatives. However, sea bed anchoring of such floating bodies is yet not well understood, and deeper insights into the anchor-soil-interaction are crucial for the operation safety of these structures. Installation effects of the anchor-soil-interaction are often ignored. In this scope of work, installing a drag embedded anchor (DEA) in Baltic Sea soil is simulated and analyzed using FEM with the Coupled Euler-Lagrange approach. The soil state is examined before and after installation. Results show a major change in the soil state surrounding the anchor. The performed simulations are planned to be validated by centrifuge tests to derive macroelements that accurately represent the load response of FOWT anchors in sea soil. Discrepancies between simulation results and conventional calculations show that considerations regarding more complex soil models and installation effects must be included when designing FOWTs in order to improve the prediction of the platform movement and ensure FOWT safety.
Subjects
anchor installation
CEL
drag embedment anchor (DEA)
FOWT
offshore geotechnics
DDC Class
690: Building, Construction
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