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Frontiers in deepwater geotechnics: Optimising geotechnical design of subsea foundations

Frontiers in deepwater geotechnics: Optimising geotechnical design of subsea foundations
Frontiers in deepwater geotechnics: Optimising geotechnical design of subsea foundations

This paper outlines a toolbox of methods for optimising the geotechnical design of subsea foundations. Subsea foundations are becoming increasingly widespread as offshore development moves away from the conventional template of a fixed platform over a set of wells to subsea development of multiple wells and fields tied back to a single facility. Subsea developments comprise a network of infield flowlines and assorted pipeline and wellhead infrastructure, which is typically supported on shallow, mat foundations. The optimisation methods presented cover (i) capacity assessment methodology, (ii) foundation configuration, (iii) geotechnical input and (iv) mode of operation. The research results derive from a combination of physical model testing in a geotechnical centrifuge, numerical analysis and theoretical modelling. Many of the research results have been immediately adopted in engineering practice in Australia and overseas, demonstrating the relevance of the methods to the national and international offshore hydrocarbon industries.

0818-9110
81-99
Gourvenec, Susan
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Feng, Xiaowei
b1a28be8-c603-4239-9c93-b2c14274e9c7
Gourvenec, Susan
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Feng, Xiaowei
b1a28be8-c603-4239-9c93-b2c14274e9c7

Gourvenec, Susan and Feng, Xiaowei (2014) Frontiers in deepwater geotechnics: Optimising geotechnical design of subsea foundations. Australian Geomechanics Journal, 49 (4), 81-99.

Record type: Article

Abstract

This paper outlines a toolbox of methods for optimising the geotechnical design of subsea foundations. Subsea foundations are becoming increasingly widespread as offshore development moves away from the conventional template of a fixed platform over a set of wells to subsea development of multiple wells and fields tied back to a single facility. Subsea developments comprise a network of infield flowlines and assorted pipeline and wellhead infrastructure, which is typically supported on shallow, mat foundations. The optimisation methods presented cover (i) capacity assessment methodology, (ii) foundation configuration, (iii) geotechnical input and (iv) mode of operation. The research results derive from a combination of physical model testing in a geotechnical centrifuge, numerical analysis and theoretical modelling. Many of the research results have been immediately adopted in engineering practice in Australia and overseas, demonstrating the relevance of the methods to the national and international offshore hydrocarbon industries.

Text
2014 Australian Geomechanics 49_4_77-96 Gourvenec & Feng - Accepted Manuscript
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More information

Published date: 1 December 2014

Identifiers

Local EPrints ID: 414526
URI: http://eprints.soton.ac.uk/id/eprint/414526
ISSN: 0818-9110
PURE UUID: 031befa2-9a3f-4641-a30e-a2a11cf44af1
ORCID for Susan Gourvenec: ORCID iD orcid.org/0000-0002-2628-7914

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Date deposited: 03 Oct 2017 16:31
Last modified: 16 Mar 2024 04:31

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Contributors

Author: Susan Gourvenec ORCID iD
Author: Xiaowei Feng

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