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Deformation mechanisms during uplift of buried pipes in sand

Deformation mechanisms during uplift of buried pipes in sand
Deformation mechanisms during uplift of buried pipes in sand

To investigate the deformation mechanisms during uplift of a pipe buried in sand, a series of tests was conducted in a plane-strain calibration chamber. Image analysis was used to track the soil movement through a window. From an initial embedment of 3 diameters, a model pipe was extracted vertically whilst digital cameras captured the soil movement. Tests were conducted in uniform silica sands with grain sizes varying over one order of magnitude. During uplift, wide zones of distributed shear developed between the pipe shoulders and the ground surface. Beyond peak resistance, the deformation localised into thin shear bands, leading to strain softening behaviour. Particle size did not affect peak uplift resistance or mobilisation distance for the chosen grain size range and cover depth.

1685-1688
MillPress
Cheuk, C.Y.
4fd1f770-b1c1-4d15-b1b2-464c7a2a0d86
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93
Bolton, M.D.
9fbf6ba8-1095-4220-a7f6-38f5463a58e7
Cheuk, C.Y.
4fd1f770-b1c1-4d15-b1b2-464c7a2a0d86
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93
Bolton, M.D.
9fbf6ba8-1095-4220-a7f6-38f5463a58e7

Cheuk, C.Y., White, D.J. and Bolton, M.D. (2005) Deformation mechanisms during uplift of buried pipes in sand. In Proceedings of the 16th International Conference on Soil Mechanics and Geotechnical Engineering: Geotechnology in Harmony with the Global Environment. vol. 3, MillPress. pp. 1685-1688 .

Record type: Conference or Workshop Item (Paper)

Abstract

To investigate the deformation mechanisms during uplift of a pipe buried in sand, a series of tests was conducted in a plane-strain calibration chamber. Image analysis was used to track the soil movement through a window. From an initial embedment of 3 diameters, a model pipe was extracted vertically whilst digital cameras captured the soil movement. Tests were conducted in uniform silica sands with grain sizes varying over one order of magnitude. During uplift, wide zones of distributed shear developed between the pipe shoulders and the ground surface. Beyond peak resistance, the deformation localised into thin shear bands, leading to strain softening behaviour. Particle size did not affect peak uplift resistance or mobilisation distance for the chosen grain size range and cover depth.

Full text not available from this repository.

More information

Published date: 2005
Venue - Dates: 16th International Conference on Soil Mechanics and Geotechnical Engineering: Geotechnology in Harmony with the Global Environment, ICSMGE 2005, Osaka, Japan, 2005-09-12 - 2005-09-16

Identifiers

Local EPrints ID: 420045
URI: http://eprints.soton.ac.uk/id/eprint/420045
PURE UUID: 2b8590b3-f301-456e-9d55-4889b226c6cb
ORCID for D.J. White: ORCID iD orcid.org/0000-0002-2968-582X

Catalogue record

Date deposited: 25 Apr 2018 16:31
Last modified: 26 Nov 2019 01:25

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