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The influence of the drainage regime on the installation and the response to vertical cyclic loading of suction caissons
Citation Link: https://doi.org/10.15480/882.3278
Publikationstyp
Doctoral Thesis
Date Issued
2021-02-07
Sprache
English
Author(s)
Advisor
Referee
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2020-11-17
Institut
TORE-DOI
TORE-URI
Citation
Technische Universität Hamburg (2021)
Offshore wind turbines supported by suction caisson jackets transfer loads to the foundation through a vertical push-pull mechanism. This leads to the foundation performance under vertical cyclic loading to be a critical design aspect. Design methods are limited and only provide rough estimates. The current paucity of data of suction caisson in-service performance in uniform sand and layered soil under loading conditions relevant to offshore wind turbines calls for physical evidence to be gathered. This is addressed through numerical analyses and centrifuge tests, which investigate the suction installation and the caisson response to vertical cyclic loading. The results show no evidence of an effect of the suction caisson installation on the in-service performance. The response to vertical cyclic loading is determined by the drainage regime and the interplay between tension and compression.
Subjects
Suction caisson, sand, layered soil, suction installation, cyclic vertical loading, Material Point Method, Finite Element Method
DDC Class
550: Geowissenschaften
600: Technik
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20-12-05_Dissertation.pdf
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174.5 MB
Format
Adobe PDF