Anchor sharing in sands: Centrifuge modelling and soil element testing to characterise multi-directional loadings

Manuel Herduin, Christophe Gaudin, Lars Johanning

Research output: Chapter in Book/Conference paperConference paper

1 Citation (Scopus)

Abstract

Offshore foundations are typically designed to resist mooring loads coming from a single direction. This paper provides some insights into the geotechnical challenges associated with anchor sharing (i.e. where mooring loads are coming from multiple directions to one anchor) for Offshore Renewable Energy (ORE) applications. Firstly, the multidirectional mooring load conditions on shared anchors are characterised for cases with one, two and three mooring lines connections. Secondly, multi-directional loadings applied on a caisson foundation in a geotechnical centrifuge facility showed large capacity reduction and large displacement of the foundation at large loading angle. Thirdly, multi-directional simple shear tests have showed that volumetric contraction increases as the degree of shear stress reversal increases. Lastly, the results from the soil element tests are brought into discussion with the physical modelling results to identify the foundation's response to multi-directional loading.

Original languageEnglish
Title of host publicationOffshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics
PublisherThe American Society of Mechanical Engineers (ASME)
Number of pages9
Volume9
ISBN (Electronic)9780791851302
DOIs
Publication statusPublished - 1 Jan 2018
EventASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018 - Madrid Marriott Auditorium Hotel & Conference Centre, Madrid, Spain
Duration: 17 Jun 201822 Jun 2018
https://www.asme.org/events/omae

Conference

ConferenceASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018
Abbreviated titleOMAE 2018
CountrySpain
CityMadrid
Period17/06/1822/06/18
Internet address

Fingerprint

Mooring
Centrifuges
Anchors
Sand
Soils
Testing
Caissons
Shear stress

Cite this

Herduin, M., Gaudin, C., & Johanning, L. (2018). Anchor sharing in sands: Centrifuge modelling and soil element testing to characterise multi-directional loadings. In Offshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics (Vol. 9). [V009T10A030] The American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/OMAE2018-77419
Herduin, Manuel ; Gaudin, Christophe ; Johanning, Lars. / Anchor sharing in sands : Centrifuge modelling and soil element testing to characterise multi-directional loadings. Offshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics. Vol. 9 The American Society of Mechanical Engineers (ASME), 2018.
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Herduin, M, Gaudin, C & Johanning, L 2018, Anchor sharing in sands: Centrifuge modelling and soil element testing to characterise multi-directional loadings. in Offshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics. vol. 9, V009T10A030, The American Society of Mechanical Engineers (ASME), ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018, Madrid, Spain, 17/06/18. https://doi.org/10.1115/OMAE2018-77419

Anchor sharing in sands : Centrifuge modelling and soil element testing to characterise multi-directional loadings. / Herduin, Manuel; Gaudin, Christophe; Johanning, Lars.

Offshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics. Vol. 9 The American Society of Mechanical Engineers (ASME), 2018. V009T10A030.

Research output: Chapter in Book/Conference paperConference paper

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Herduin M, Gaudin C, Johanning L. Anchor sharing in sands: Centrifuge modelling and soil element testing to characterise multi-directional loadings. In Offshore Geotechnics; Honoring Symposium for Professor Bernard Molin on Marine and Offshore Hydrodynamics. Vol. 9. The American Society of Mechanical Engineers (ASME). 2018. V009T10A030 https://doi.org/10.1115/OMAE2018-77419