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Observations of pipe-soil response from the first deep water deployment of the SMARTPIPE®

Observations of pipe-soil response from the first deep water deployment of the SMARTPIPE®
Observations of pipe-soil response from the first deep water deployment of the SMARTPIPE®

The Fugro SMARTPIPE® is a new site investigation tool to measure pipe-soil interaction parameters in situ, at the seabed. It comprises a seabed frame with an instrumented model pipe that can be driven in the vertical, axial and lateral directions. This paper presents results from the first SMARTPIPE® campaign in deep water, focusing on axial pipe-soil interaction on soft clay. Pore pressure measurements on the surface of the test pipe provide data that allows the cyclic axial response to be interpreted in an effective stress framework. An effective stress failure criterion shows better agreement with the response across several axial sweeps than a total stress interpretation. In the example test presented here, transient positive excess pore pressure is generated when the pipe changes direction. This means that in this case, surprisingly, the full axial resistance is mobilised over a particular time rather than a particular distance.

851-856
CRC Press
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93
Hill, A.J.
36f681d7-f7a0-4a7b-9b00-bddd68a3111b
Westgate, Z.J.
983a044b-1644-4a5c-895d-6b7c83501ab9
Ballard, J.C.
23ea4838-f0d1-4401-a886-5925951d4754
Gourvenec, Susan
White, David
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93
Hill, A.J.
36f681d7-f7a0-4a7b-9b00-bddd68a3111b
Westgate, Z.J.
983a044b-1644-4a5c-895d-6b7c83501ab9
Ballard, J.C.
23ea4838-f0d1-4401-a886-5925951d4754
Gourvenec, Susan
White, David

White, D.J., Hill, A.J., Westgate, Z.J. and Ballard, J.C. (2010) Observations of pipe-soil response from the first deep water deployment of the SMARTPIPE®. Gourvenec, Susan and White, David (eds.) In Frontiers in Offshore Geotechnics II - Proceedings of the 2nd International Symposium on Frontiers in Offshore Geotechnics. CRC Press. pp. 851-856 .

Record type: Conference or Workshop Item (Paper)

Abstract

The Fugro SMARTPIPE® is a new site investigation tool to measure pipe-soil interaction parameters in situ, at the seabed. It comprises a seabed frame with an instrumented model pipe that can be driven in the vertical, axial and lateral directions. This paper presents results from the first SMARTPIPE® campaign in deep water, focusing on axial pipe-soil interaction on soft clay. Pore pressure measurements on the surface of the test pipe provide data that allows the cyclic axial response to be interpreted in an effective stress framework. An effective stress failure criterion shows better agreement with the response across several axial sweeps than a total stress interpretation. In the example test presented here, transient positive excess pore pressure is generated when the pipe changes direction. This means that in this case, surprisingly, the full axial resistance is mobilised over a particular time rather than a particular distance.

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More information

Published date: 2010
Venue - Dates: 2nd International Symposium on Frontiers in Offshore Geotechnics, Perth, Australia, 2010-11-08 - 2010-11-10

Identifiers

Local EPrints ID: 419900
URI: http://eprints.soton.ac.uk/id/eprint/419900
PURE UUID: dfc656f6-7c4f-45a8-9d4f-5802f8913a11
ORCID for D.J. White: ORCID iD orcid.org/0000-0002-2968-582X

Catalogue record

Date deposited: 23 Apr 2018 16:30
Last modified: 29 Oct 2019 01:26

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