Physical Modelling of Bucket Foundations Subjected to Axial Loading

Evelina Vaitkunaite

Research output: PhD thesis

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Abstract

Compared to oil and gas structures, marine renewable energy devices are usually much lighter, operate in shallower waters and are subjected to severe cyclic loading and dynamic excitations. These factors result in different structural behaviours. Bucket foundations are a potentially cost-effective solution for various offshore structures, and not least marine renewables.
The present thesis focuses on several critical design problems related to the behaviour of bucket foundations exposed to tensile loading. Among those are the soil-structure interface parameters, tensile loading under various displacement rates and tensile cyclic loading.
A new laboratory testing facility is constructed allowing large scale foundation model testing under long-term cyclic loadings. Another test set-up - a pressure tank – is employed for the displacement rate analysis. The extensive testing campaign provides valuable data about the effects of tensile loading.
Translated title of the contributionFysisk Modellering af Bøttefundamenter under Aksial Belastning
Original languageEnglish
Place of PublicationAalborg
Publisher
Electronic ISBNs978-87-7112-726-3
DOIs
Publication statusPublished - 2016

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