Failure envelopes for offshore shallow foundations under general loading
Failure envelopes for offshore shallow foundations under general loading
The interaction of vertical, horizontal and moment (VHM) loads acting on a shallow foundation is complex, and it is becoming increasingly popular to represent ultimate limit states under general VHM loading as failure envelopes in three-dimensional load space. General loading is of particular interest offshore, where harsh environmental conditions lead to large horizontal and moment foundation loads. Shallow foundations with peripheral skirts that penetrate into the seabed are used to resist large lateral and overturning forces. During undrained loading, tensile resistance can be mobilised on the underside of the base plate by suctions developed within the skirt compartment. This paper presents failure envelopes and kinematic mechanisms for undrained ultimate limit states of circular skirted foundations in uniform and heterogeneous deposits under general VHM loading based on finite element results. An approximating method is proposed that permits accurate prediction of ultimate limit states under a full range of general loading.
Bearing capacity, Footings/foundations, Numerical modelling
715-728
Gourvenec, S.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
November 2007
Gourvenec, S.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Gourvenec, S.
(2007)
Failure envelopes for offshore shallow foundations under general loading.
Geotechnique, 57 (9), .
(doi:10.1680/geot.2007.57.9.715).
Abstract
The interaction of vertical, horizontal and moment (VHM) loads acting on a shallow foundation is complex, and it is becoming increasingly popular to represent ultimate limit states under general VHM loading as failure envelopes in three-dimensional load space. General loading is of particular interest offshore, where harsh environmental conditions lead to large horizontal and moment foundation loads. Shallow foundations with peripheral skirts that penetrate into the seabed are used to resist large lateral and overturning forces. During undrained loading, tensile resistance can be mobilised on the underside of the base plate by suctions developed within the skirt compartment. This paper presents failure envelopes and kinematic mechanisms for undrained ultimate limit states of circular skirted foundations in uniform and heterogeneous deposits under general VHM loading based on finite element results. An approximating method is proposed that permits accurate prediction of ultimate limit states under a full range of general loading.
This record has no associated files available for download.
More information
Published date: November 2007
Keywords:
Bearing capacity, Footings/foundations, Numerical modelling
Identifiers
Local EPrints ID: 414638
URI: http://eprints.soton.ac.uk/id/eprint/414638
ISSN: 0016-8505
PURE UUID: 155a3683-0e47-4e00-a6f5-6abe0c5c4496
Catalogue record
Date deposited: 05 Oct 2017 16:30
Last modified: 16 Mar 2024 04:31
Export record
Altmetrics
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
