Effect of embedment on consolidated undrained capacity of skirted circular foundations in soft clay under planar loading
Effect of embedment on consolidated undrained capacity of skirted circular foundations in soft clay under planar loading
The effect of foundation embedment ratio and soil–skirt interface roughness on the consolidated undrained capacity of skirted circular foundations under planar loading in normally consolidated clay has been investigated through coupled three-dimensional finite element analyses. Results are presented as failure envelopes, and changes in shape and size of the normalized vertical–horizontal–moment (VHM) failure envelopes are described as a function of relative magnitude and duration of applied preload. Results show that embedment ratio and interface roughness affect the load distribution within the soil mass, but that consolidated undrained capacity under planar loading scales proportionately with the (unconsolidated) undrained capacity of the foundation. This latter feature enables the results to be neatly synthesized into a relatively straightforward method for use in engineering practice for prediction of gain in undrained VHM capacity due to preload and consolidation.
Bearing capacity, Combined loading, Consolidation, Skirted foundation, Soil–structure interface
158-172
Vulpe, Cristina
69986563-ade3-4971-9611-2005a2d60af7
Gourvenec, Susan M.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Cornelius, Alexander F.
a98817fc-3a4b-409f-836f-b4828035c8d3
February 2017
Vulpe, Cristina
69986563-ade3-4971-9611-2005a2d60af7
Gourvenec, Susan M.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Cornelius, Alexander F.
a98817fc-3a4b-409f-836f-b4828035c8d3
Vulpe, Cristina, Gourvenec, Susan M. and Cornelius, Alexander F.
(2017)
Effect of embedment on consolidated undrained capacity of skirted circular foundations in soft clay under planar loading.
Canadian Geotechnical Journal, 54 (2), .
(doi:10.1139/cgj-2016-0265).
Abstract
The effect of foundation embedment ratio and soil–skirt interface roughness on the consolidated undrained capacity of skirted circular foundations under planar loading in normally consolidated clay has been investigated through coupled three-dimensional finite element analyses. Results are presented as failure envelopes, and changes in shape and size of the normalized vertical–horizontal–moment (VHM) failure envelopes are described as a function of relative magnitude and duration of applied preload. Results show that embedment ratio and interface roughness affect the load distribution within the soil mass, but that consolidated undrained capacity under planar loading scales proportionately with the (unconsolidated) undrained capacity of the foundation. This latter feature enables the results to be neatly synthesized into a relatively straightforward method for use in engineering practice for prediction of gain in undrained VHM capacity due to preload and consolidation.
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2017 Canadian Geotechnical Journal 54_2_158-172 Vulpe et al.
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cgj-2016-0265
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Accepted/In Press date: 2 September 2016
e-pub ahead of print date: 7 September 2016
Published date: February 2017
Keywords:
Bearing capacity, Combined loading, Consolidation, Skirted foundation, Soil–structure interface
Identifiers
Local EPrints ID: 414478
URI: http://eprints.soton.ac.uk/id/eprint/414478
ISSN: 0008-3674
PURE UUID: 4becf6aa-186d-4acc-b7f7-811a83b71fee
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Date deposited: 02 Oct 2017 16:30
Last modified: 16 Mar 2024 04:31
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Author:
Cristina Vulpe
Author:
Alexander F. Cornelius
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