The University of Southampton
University of Southampton Institutional Repository

Response of normally consolidated kaolin clay under irregular cyclic loading and comparison with predictions from the accumulation procedure

Response of normally consolidated kaolin clay under irregular cyclic loading and comparison with predictions from the accumulation procedure
Response of normally consolidated kaolin clay under irregular cyclic loading and comparison with predictions from the accumulation procedure
The accumulation procedure on contour diagrams of shear strain is used in geotechnical design to account for the effect of cyclic loading on offshore foundations. In this paper, contour diagrams of maximum shear strain are presented based on a series of stress-controlled, symmetrical and non-symmetrical, cyclic direct simple shear tests on normally consolidated kaolin clay that can be used to re-examine the extensive database of model testing in kaolin clay. It is shown that the failure under non-symmetrical cyclic loading can be defined at a higher maximum shear strain than under symmetrical loading, offering potential opportunities for reducing foundation sizes for structures that are less sensitive to displacement. Staged tests with parcels of uniform amplitudes have been also performed to compare the measured shear strains with the values predicted by the accumulation procedure. It is shown that the accumulation procedure predicts the strain measured in the symmetrical staged tests well but overpredicts shear strains measured in the non-symmetrical staged tests.
0016-8505
106-121
Zografou, D.
6d9022e6-ffa1-4528-9434-5c5c853d672b
Gourvenec, S.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
O'Loughlin, C.D.
b0fc277d-6301-45fd-a2a5-438655f822b0
Zografou, D.
6d9022e6-ffa1-4528-9434-5c5c853d672b
Gourvenec, S.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
O'Loughlin, C.D.
b0fc277d-6301-45fd-a2a5-438655f822b0

Zografou, D., Gourvenec, S. and O'Loughlin, C.D. (2019) Response of normally consolidated kaolin clay under irregular cyclic loading and comparison with predictions from the accumulation procedure. Geotechnique, 69 (2), 106-121. (doi:10.1680/jgeot.16.P.340).

Record type: Article

Abstract

The accumulation procedure on contour diagrams of shear strain is used in geotechnical design to account for the effect of cyclic loading on offshore foundations. In this paper, contour diagrams of maximum shear strain are presented based on a series of stress-controlled, symmetrical and non-symmetrical, cyclic direct simple shear tests on normally consolidated kaolin clay that can be used to re-examine the extensive database of model testing in kaolin clay. It is shown that the failure under non-symmetrical cyclic loading can be defined at a higher maximum shear strain than under symmetrical loading, offering potential opportunities for reducing foundation sizes for structures that are less sensitive to displacement. Staged tests with parcels of uniform amplitudes have been also performed to compare the measured shear strains with the values predicted by the accumulation procedure. It is shown that the accumulation procedure predicts the strain measured in the symmetrical staged tests well but overpredicts shear strains measured in the non-symmetrical staged tests.

Text
2018 Geotechniqe Zografou et al_DSS - Accepted Manuscript
Download (3MB)
Text
2019_Zografou et al_DSS_Geotechnique - Other
Restricted to Repository staff only
Request a copy

More information

Accepted/In Press date: 20 February 2018
e-pub ahead of print date: 2 April 2018
Published date: February 2019

Identifiers

Local EPrints ID: 421583
URI: http://eprints.soton.ac.uk/id/eprint/421583
ISSN: 0016-8505
PURE UUID: 4a7c7630-ef0d-4803-902f-dfbfebd02855
ORCID for S. Gourvenec: ORCID iD orcid.org/0000-0002-2628-7914

Catalogue record

Date deposited: 15 Jun 2018 16:30
Last modified: 16 Mar 2024 04:31

Export record

Altmetrics

Contributors

Author: D. Zografou
Author: S. Gourvenec ORCID iD
Author: C.D. O'Loughlin

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

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×