A simple approach to multi degree-of-freedom loading in a geotechnical centrifuge
A simple approach to multi degree-of-freedom loading in a geotechnical centrifuge
This article considers an alternative approach for multiplanar loading and multi-degree-of-freedom movement in geotechnical centrifuge model tests. The multi-degree-of-freedom loading system allows for vertical load control on the vertical axis and either displacement or load control on the two horizontal axes, while allowing rotation about these axes. The system is described in detail, and the system performance is validated through results from a centrifuge test comparing observed results with analytical and numerical solutions. The validation of the system considers a mudmat foundation under large amplitude lateral displacement, where two displacement degrees-of-freedom and two rotational degrees-of-freedom were of interest. However, the apparatus is versatile and can be used for testing other foundation types or pipelines, with up to six degrees-of-freedom.
O’Loughlin, Conleth D.
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Cocjin, Michael L.
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Gourvenec, Susan M.
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Stanier, Samuel A.
b11049bd-44ee-4db9-9e66-a5ea20a3c70b
O’Loughlin, Conleth D.
d2821636-d20b-4fea-82fb-c1c64b53433c
Cocjin, Michael L.
42ee9efc-8d8a-4330-ae75-00665def8fd3
Gourvenec, Susan M.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Stanier, Samuel A.
b11049bd-44ee-4db9-9e66-a5ea20a3c70b
O’Loughlin, Conleth D., Cocjin, Michael L., Gourvenec, Susan M. and Stanier, Samuel A.
(2019)
A simple approach to multi degree-of-freedom loading in a geotechnical centrifuge.
Geotechnical Testing Journal, 42 (5).
(doi:10.1520/GTJ20180037).
Abstract
This article considers an alternative approach for multiplanar loading and multi-degree-of-freedom movement in geotechnical centrifuge model tests. The multi-degree-of-freedom loading system allows for vertical load control on the vertical axis and either displacement or load control on the two horizontal axes, while allowing rotation about these axes. The system is described in detail, and the system performance is validated through results from a centrifuge test comparing observed results with analytical and numerical solutions. The validation of the system considers a mudmat foundation under large amplitude lateral displacement, where two displacement degrees-of-freedom and two rotational degrees-of-freedom were of interest. However, the apparatus is versatile and can be used for testing other foundation types or pipelines, with up to six degrees-of-freedom.
Text
2018 ASTM GTJ O'Loughlin et al - text+figs
- Accepted Manuscript
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Accepted/In Press date: 11 July 2018
e-pub ahead of print date: 1 September 2019
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Local EPrints ID: 422759
URI: http://eprints.soton.ac.uk/id/eprint/422759
ISSN: 0149-6115
PURE UUID: 125bb53c-1c19-4d00-bf09-5d190b9f161c
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Date deposited: 03 Aug 2018 16:30
Last modified: 16 Mar 2024 06:55
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Author:
Conleth D. O’Loughlin
Author:
Michael L. Cocjin
Author:
Samuel A. Stanier
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