An investigation into the vertical bearing capacity of perforated mudmats
An investigation into the vertical bearing capacity of perforated mudmats
The optimal design of a mudmat foundation for a seabed structure maximizes the ratio of vertical compression to pullout capacity, which can be achieved by adding perforations. This paper describes an investigation led by Technip in which solid and perforated mudmats were installed into soft clay. The installation load of the solid mudmats matched the theoretical bearing capacity. Perforations reduced the installation load in proportion to the perforated area. In heterogeneous conditions, a further change in installation load arose due to the shallower failure mechanism. Peak pullout resistance was governed by separation beneath the mudmat, and depended on the width of the grillage elements formed by the perforation.
459-465
White, D.J.
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Maconochie, A.J.
9b14946d-658c-447a-bfa8-11d833ac11f1
Cheuk, C.Y.
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Bolton, M.D.
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Joray, D.
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Springman, S.M.
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2005
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93
Maconochie, A.J.
9b14946d-658c-447a-bfa8-11d833ac11f1
Cheuk, C.Y.
4fd1f770-b1c1-4d15-b1b2-464c7a2a0d86
Bolton, M.D.
9fbf6ba8-1095-4220-a7f6-38f5463a58e7
Joray, D.
02bb613a-c56e-4496-aa6b-a03f1498e243
Springman, S.M.
b24f5e5a-dbd9-450e-a08b-c1a15741a3df
White, D.J., Maconochie, A.J., Cheuk, C.Y., Bolton, M.D., Joray, D. and Springman, S.M.
(2005)
An investigation into the vertical bearing capacity of perforated mudmats.
Gourvenec, Susan
(ed.)
In First International Symposium on Frontiers in Offshore Geotechnics.
Taylor & Francis.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The optimal design of a mudmat foundation for a seabed structure maximizes the ratio of vertical compression to pullout capacity, which can be achieved by adding perforations. This paper describes an investigation led by Technip in which solid and perforated mudmats were installed into soft clay. The installation load of the solid mudmats matched the theoretical bearing capacity. Perforations reduced the installation load in proportion to the perforated area. In heterogeneous conditions, a further change in installation load arose due to the shallower failure mechanism. Peak pullout resistance was governed by separation beneath the mudmat, and depended on the width of the grillage elements formed by the perforation.
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More information
Published date: 2005
Venue - Dates:
1st International Symposium on Frontiers in Offshore Geotechnics, ISFOG 2005, , Perth, WA, Australia, 2005-09-19 - 2005-09-21
Identifiers
Local EPrints ID: 420035
URI: http://eprints.soton.ac.uk/id/eprint/420035
PURE UUID: 4a7a19e6-0636-4ca6-bf06-1fcc43dc6e3f
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Date deposited: 25 Apr 2018 16:31
Last modified: 28 Feb 2024 03:01
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Contributors
Author:
A.J. Maconochie
Author:
C.Y. Cheuk
Author:
M.D. Bolton
Author:
D. Joray
Author:
S.M. Springman
Editor:
Susan Gourvenec
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