Effect of a surficial crust on mudmat capacity under fully three-dimensional loading
Effect of a surficial crust on mudmat capacity under fully three-dimensional loading
Submarine sediments in many deep-water regions exhibit a thin crust overlying geologically normally consolidated clay. Load-carrying capacity of mudmat foundations for supporting subsea infrastructure installed on seabeds with a surficial crust is of great interest to foundation designers. Finite-element analyses have been performed to investigate the undrained response of mudmats under combined six degree-of-freedom loading in terms of the effect of crust thickness, foundation embedment and relative shear strengths of the underlying soft clay and crust. Results are presented as failure envelopes and expressions are presented to enable calculation of the uniaxial and combined load capacities under fully three-dimensional loading.
Bearing capacity, Clays, Fabric=structure of soils, Failure, Footings=foundations, Offshore engineering
590-603
Feng, X.
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Gourvenec, S.
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Randolph, M. F.
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Wallerand, R.
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Dimmock, P.
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1 July 2015
Feng, X.
b1a28be8-c603-4239-9c93-b2c14274e9c7
Gourvenec, S.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Randolph, M. F.
75caa33a-e630-4ae8-84cd-758797bf9633
Wallerand, R.
0cccbdeb-4e69-4654-9c33-e00ca5e4a860
Dimmock, P.
9f7906cf-c01f-4490-8ecb-75ce9ca635cf
Feng, X., Gourvenec, S., Randolph, M. F., Wallerand, R. and Dimmock, P.
(2015)
Effect of a surficial crust on mudmat capacity under fully three-dimensional loading.
Geotechnique, 65 (7), .
(doi:10.1680/geot.14.P.167).
Abstract
Submarine sediments in many deep-water regions exhibit a thin crust overlying geologically normally consolidated clay. Load-carrying capacity of mudmat foundations for supporting subsea infrastructure installed on seabeds with a surficial crust is of great interest to foundation designers. Finite-element analyses have been performed to investigate the undrained response of mudmats under combined six degree-of-freedom loading in terms of the effect of crust thickness, foundation embedment and relative shear strengths of the underlying soft clay and crust. Results are presented as failure envelopes and expressions are presented to enable calculation of the uniaxial and combined load capacities under fully three-dimensional loading.
Text
2015 Geotechnique 65_7_590-603 Feng et al.
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More information
Accepted/In Press date: 6 February 2015
e-pub ahead of print date: 22 June 2015
Published date: 1 July 2015
Keywords:
Bearing capacity, Clays, Fabric=structure of soils, Failure, Footings=foundations, Offshore engineering
Identifiers
Local EPrints ID: 414538
URI: http://eprints.soton.ac.uk/id/eprint/414538
ISSN: 0016-8505
PURE UUID: 79e0fa0d-bd9f-4f74-8e09-1b1293450888
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Date deposited: 03 Oct 2017 16:31
Last modified: 16 Mar 2024 04:31
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Contributors
Author:
X. Feng
Author:
M. F. Randolph
Author:
R. Wallerand
Author:
P. Dimmock
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