Lateral boundary effect in centrifuge tests for spudcan penetration in uniform clay
Lateral boundary effect in centrifuge tests for spudcan penetration in uniform clay
The effect of the centrifuge strongbox boundary on the penetration resistance of a spudcan foundation in uniform clay has been studied using Large Deformation FE analysis. Both smooth and rough strongbox boundaries were considered with various strongbox sizes. The spudcan penetration resistance and soil flow mechanisms were analysed. It was observed that, when the strongbox size was reduced, the spudcan penetration resistance was decreased for a smooth boundary and increased for a rough boundary. The depth of cavity formed above the spudcan during its penetration, in most cases, was determined by the soil flow around mechanism without cavity wall failure. However, cavity wall failure could be initiated when a smooth strongbox boundary was very close to the spudcan. The strongbox boundary effect on the spudcan penetration resistance can be avoided when the distance of the strongbox boundary to the spudcan centre is larger than 1.5 times of spudcan diameter for a rough boundary; or 2 times of spudcan diameter for a smooth boundary.
Boundary effect, Clay, Finite element modeling, Foundation
458-463
Ullah, Shah Neyamat
c5d51947-9c2b-4c3b-b71b-221e10e46a0f
Hu, Yuxia
2b988c6d-0d30-4465-8266-3fd8b329662a
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
Stanier, Samuel
b11049bd-44ee-4db9-9e66-a5ea20a3c70b
May 2014
Ullah, Shah Neyamat
c5d51947-9c2b-4c3b-b71b-221e10e46a0f
Hu, Yuxia
2b988c6d-0d30-4465-8266-3fd8b329662a
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
Stanier, Samuel
b11049bd-44ee-4db9-9e66-a5ea20a3c70b
Ullah, Shah Neyamat, Hu, Yuxia, White, David and Stanier, Samuel
(2014)
Lateral boundary effect in centrifuge tests for spudcan penetration in uniform clay.
Steven, Grant P., Li, Qing and Zhang, Zhongpu (Leo)
(eds.)
In Advances in Computational Mechanics.
vol. 553,
Trans Tech Publications.
.
(doi:10.4028/www.scientific.net/AMM.553.458).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The effect of the centrifuge strongbox boundary on the penetration resistance of a spudcan foundation in uniform clay has been studied using Large Deformation FE analysis. Both smooth and rough strongbox boundaries were considered with various strongbox sizes. The spudcan penetration resistance and soil flow mechanisms were analysed. It was observed that, when the strongbox size was reduced, the spudcan penetration resistance was decreased for a smooth boundary and increased for a rough boundary. The depth of cavity formed above the spudcan during its penetration, in most cases, was determined by the soil flow around mechanism without cavity wall failure. However, cavity wall failure could be initiated when a smooth strongbox boundary was very close to the spudcan. The strongbox boundary effect on the spudcan penetration resistance can be avoided when the distance of the strongbox boundary to the spudcan centre is larger than 1.5 times of spudcan diameter for a rough boundary; or 2 times of spudcan diameter for a smooth boundary.
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More information
Published date: May 2014
Venue - Dates:
1st Australasian Conference on Computational Mechanics, ACCM 2013, , Sydney, NSW, Australia, 2013-10-03 - 2013-10-04
Keywords:
Boundary effect, Clay, Finite element modeling, Foundation
Identifiers
Local EPrints ID: 419757
URI: http://eprints.soton.ac.uk/id/eprint/419757
ISSN: 1660-9336
PURE UUID: 0194eca1-84cf-4d88-9262-ec4382048d26
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Date deposited: 20 Apr 2018 16:30
Last modified: 06 Jun 2024 02:00
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Contributors
Author:
Shah Neyamat Ullah
Author:
Yuxia Hu
Author:
Samuel Stanier
Editor:
Grant P. Steven
Editor:
Qing Li
Editor:
Zhongpu (Leo) Zhang
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