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Undrained bearing capacity of square and rectangular footings

Undrained bearing capacity of square and rectangular footings
Undrained bearing capacity of square and rectangular footings

The uniaxial vertical bearing capacity of square and rectangular footings resting on homogeneous undrained clay is investigated with finite element analyses, using both Tresca and von Mises soil models. Results are compared with predictions from conventional bearing capacity theory and available analytical and numerical solutions. By calibrating the finite element results against known exact solutions, best estimates of bearing capacity for rough-based rectangular footings are derived, with the shape factor fitted by a simple quadratic function of the footing aspect ratio. For a square footing, the bearing capacity is approximately 5% lower than that based on Skempton's shape factor of 1.2.

Analytical techniques, Bearing capacity, Footings, Numerical analysis, Shallow foundations, Vertical loads
1532-3641
147-157
Gourvenec, Susan
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Randolph, Mark
75caa33a-e630-4ae8-84cd-758797bf9633
Kingsnorth, Oliver
d0cdcd8e-78ef-4e0d-aa90-fe9c3eead02c
Gourvenec, Susan
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Randolph, Mark
75caa33a-e630-4ae8-84cd-758797bf9633
Kingsnorth, Oliver
d0cdcd8e-78ef-4e0d-aa90-fe9c3eead02c

Gourvenec, Susan, Randolph, Mark and Kingsnorth, Oliver (2006) Undrained bearing capacity of square and rectangular footings. International Journal of Geomechanics, ASCE, 6 (3), 147-157. (doi:10.1061/(ASCE)1532-3641(2006)6:3(147)).

Record type: Article

Abstract

The uniaxial vertical bearing capacity of square and rectangular footings resting on homogeneous undrained clay is investigated with finite element analyses, using both Tresca and von Mises soil models. Results are compared with predictions from conventional bearing capacity theory and available analytical and numerical solutions. By calibrating the finite element results against known exact solutions, best estimates of bearing capacity for rough-based rectangular footings are derived, with the shape factor fitted by a simple quadratic function of the footing aspect ratio. For a square footing, the bearing capacity is approximately 5% lower than that based on Skempton's shape factor of 1.2.

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More information

Published date: May 2006
Keywords: Analytical techniques, Bearing capacity, Footings, Numerical analysis, Shallow foundations, Vertical loads

Identifiers

Local EPrints ID: 414555
URI: http://eprints.soton.ac.uk/id/eprint/414555
ISSN: 1532-3641
PURE UUID: bd6e41a4-0c84-4d1c-abaa-e2b0fd544b0c
ORCID for Susan Gourvenec: ORCID iD orcid.org/0000-0002-2628-7914

Catalogue record

Date deposited: 04 Oct 2017 16:30
Last modified: 16 Mar 2024 04:31

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Contributors

Author: Susan Gourvenec ORCID iD
Author: Mark Randolph
Author: Oliver Kingsnorth

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