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Centrifuge study of capacity of a skirted foundation under eccentric transient and sustained uplift

Centrifuge study of capacity of a skirted foundation under eccentric transient and sustained uplift
Centrifuge study of capacity of a skirted foundation under eccentric transient and sustained uplift

Environmental and buoyancy forces impart overturning moments and potentially direct uplift to offshore foundation systems. Shallow skirted foundations are an attractive design solution, as negative excess pore pressures developed within the soil plug provide temporary uplift resistance. This paper presents the results of beam centrifuge tests on a shallow skirted foundation in a lightly overconsolidated clay under eccentric transient and sustained uplift. When compared with the response under concentric uplift, the experimental results show a reduction in capacity and an increase in the rate of degradation of capacity under sustained loading.

Bearing capacity, Clays, Foundations, Model tests, Offshore engineering, Pore pressures, Time dependence
0016-8505
317-328
Acosta-Martinez, H. E.
703d416b-e56c-4e28-ac45-e7f1e1ffba91
Gourvenec, S.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Randolph, M. F.
75caa33a-e630-4ae8-84cd-758797bf9633
Acosta-Martinez, H. E.
703d416b-e56c-4e28-ac45-e7f1e1ffba91
Gourvenec, S.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Randolph, M. F.
75caa33a-e630-4ae8-84cd-758797bf9633

Acosta-Martinez, H. E., Gourvenec, S. and Randolph, M. F. (2012) Centrifuge study of capacity of a skirted foundation under eccentric transient and sustained uplift. Géotechnique, 62 (4), 317-328. (doi:10.1680/geot.9.P.027).

Record type: Article

Abstract

Environmental and buoyancy forces impart overturning moments and potentially direct uplift to offshore foundation systems. Shallow skirted foundations are an attractive design solution, as negative excess pore pressures developed within the soil plug provide temporary uplift resistance. This paper presents the results of beam centrifuge tests on a shallow skirted foundation in a lightly overconsolidated clay under eccentric transient and sustained uplift. When compared with the response under concentric uplift, the experimental results show a reduction in capacity and an increase in the rate of degradation of capacity under sustained loading.

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More information

Published date: April 2012
Keywords: Bearing capacity, Clays, Foundations, Model tests, Offshore engineering, Pore pressures, Time dependence

Identifiers

Local EPrints ID: 414657
URI: https://eprints.soton.ac.uk/id/eprint/414657
ISSN: 0016-8505
PURE UUID: 0f66c5c3-4e2f-4982-b76e-0d50d9571135
ORCID for S. Gourvenec: ORCID iD orcid.org/0000-0002-2628-7914

Catalogue record

Date deposited: 05 Oct 2017 16:30
Last modified: 20 Jul 2019 00:25

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Contributors

Author: H. E. Acosta-Martinez
Author: S. Gourvenec ORCID iD
Author: M. F. Randolph

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