Abstract
A major departure from traditional foundation practice for steel jackets has been developed based on the experience with skirts for huge concrete gravity platforms. The method, using plate-skirt foundations or perhaps better described as “skirted mudmats” or skirtpiles, will provide bearing capacity for compressive loads in the same way as gravity structures. Overturning uplift forces will be resisted by suction. This is a new concept in sand, and has been verified by offshore field tests and onshore laboratory tests. This is a description of the philosophy and efforts behind the development. The principles will be applied for the Europipe riser platform at Norwegian block 16/11.
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References
Tjelta, T. I., Aas, P. M., Hermestad, J., and Andenæs, E. (1990) ‘The skirt piled Gullfaks C platform installation’, Proceedings of 22nd Anual OTC, May 1990, Vol. 4, 453–462.
Christophersen, H. P. (1993), ‘The non piled foundation systems of the Snorre field’, Proc. Offshore Site Investigation and Foundation Behaviour, SUT, London, September 1992.
Baerheim, M. and Tjelta, T. I. (1992), ‘Skirt-plate foundations for offshore jackets’, ISOPE June 1992.
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© 1993 Springer Science+Business Media Dordrecht
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Tjelta, T.I., Haaland, G. (1993). Novel Foundation Concept for a Jacket Finding Its Place. In: Ardus, D.A., Clare, D., Hill, A., Hobbs, R., Jardine, R.J., Squire, J.M. (eds) Offshore Site Investigation and Foundation Behaviour. Advances in Underwater Technology, Ocean Science and Offshore Engineering, vol 28. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-2473-9_34
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DOI: https://doi.org/10.1007/978-94-017-2473-9_34
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-4293-4
Online ISBN: 978-94-017-2473-9
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