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Predicted and observed settlements of a subsea rock installation: comparison between field measurements and FE simulations of soft North Sea clay
Subsea 7.
Subsea 7.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
2015 (English)In: Frontiers in offshore geotechnics III: proceedings of the Third International Symposium on Frontiers in Offshore Geotechnics (ISFOG 2015), Oslo, Norway, 10-12 June 2015 Volume 1 [...] / [ed] Vaughan Meyer, Boca Raton: CRC Press/Balkema , 2015, 393-398 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, a study is presented on the possibility to numerically simulate observed settlements of an offshore subsea rock foundation installed on normally consolidated clay. Settlements were monitored at 31 days and 200 days after installation and compared against predictions computed by means of finite element analysis. The results highlight that computations with a material model incorporating a logarithmic stress-strain relationship can accurately predict the consolidation settlements of normally consolidated clay. For long-term settlements, a material model that includes a creep factor is likely to increase the prediction accuracy of the total settlements. This study was performed in order to improve the prediction of soft clay settlements, as this phenomenon may have a large impact on design for sensitive subsea infrastructure installed on the seabed

Place, publisher, year, edition, pages
Boca Raton: CRC Press/Balkema , 2015. 393-398 p.
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-40605Local ID: fca49de1-f329-4996-8d64-a82ad8e1e4f6ISBN: 9781138028500 (print)OAI: oai:DiVA.org:ltu-40605DiVA: diva2:1014127
Conference
International Symposium on Frontiers in Offshore Geotechnics : 10/06/2015 - 12/06/2015
Note
Godkänd; 2015; 20150605 (hmat)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-25Bibliographically approved

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CiteExportLink to record
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