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Interface shear box tests for assessing axial pipe-soil resistance

Interface shear box tests for assessing axial pipe-soil resistance
Interface shear box tests for assessing axial pipe-soil resistance

The clay-interface shear resistance is an important parameter for the design of offshore pipelines, which slide on the seabed as a result of thermally induced expansion, contraction and lateral buckling. This paper presents a methodology for characterising the clay-interface resistance and quantifying the effect of drainage and consolidation during or in-between shearing episodes. Models for describing the clay-interface resistance during planar shearing are presented and compared to test data for a range of drainage conditions from drained to undrained and including the case of episodic consolidation. The test data are from two series of interface shear box tests carried out on marine clays. The effects of normal stress level (in the low stress range), overconsolidation and interface roughness are also examined.

Clays, Consolidation, Pipes & pipelines
0016-8505
18-30
Boukpeti, N.
3a09b546-4d1a-498d-986a-02165e5ab4fc
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93
Boukpeti, N.
3a09b546-4d1a-498d-986a-02165e5ab4fc
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93

Boukpeti, N. and White, D.J. (2017) Interface shear box tests for assessing axial pipe-soil resistance. Géotechnique, 67 (1), 18-30. (doi:10.1680/jgeot.15.P.112).

Record type: Article

Abstract

The clay-interface shear resistance is an important parameter for the design of offshore pipelines, which slide on the seabed as a result of thermally induced expansion, contraction and lateral buckling. This paper presents a methodology for characterising the clay-interface resistance and quantifying the effect of drainage and consolidation during or in-between shearing episodes. Models for describing the clay-interface resistance during planar shearing are presented and compared to test data for a range of drainage conditions from drained to undrained and including the case of episodic consolidation. The test data are from two series of interface shear box tests carried out on marine clays. The effects of normal stress level (in the low stress range), overconsolidation and interface roughness are also examined.

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Boukpeti_White_author manuscript - Accepted Manuscript
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More information

Accepted/In Press date: 1 July 2016
e-pub ahead of print date: 4 August 2016
Published date: 1 January 2017
Keywords: Clays, Consolidation, Pipes & pipelines

Identifiers

Local EPrints ID: 418063
URI: http://eprints.soton.ac.uk/id/eprint/418063
ISSN: 0016-8505
PURE UUID: 91a951d8-9615-4ea1-9179-71dc907686ff
ORCID for D.J. White: ORCID iD orcid.org/0000-0002-2968-582X

Catalogue record

Date deposited: 21 Feb 2018 17:30
Last modified: 17 Dec 2019 01:26

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