A review of a CPT based axial capacity prediction of screw piles in sand
A review of a CPT based axial capacity prediction of screw piles in sand
Screw piles are widely used in onshore engineering applications and have recently been considered as an alternative foundation solution for offshore wind turbines (OWTs) supported on jacket structures. The high loads required to support such structures demand a considerable up-scaling of the screw pile geometry typically used onshore. Driven piles followed a similar upscaling process for their use in offshore structures and the CPT tip resistance (qc) value is now commonly used directly in design methods for both onshore and offshore driven piles. This paper evaluates the performance of a new CPT-based design method (UWA-SP-21) to predict the axial capacity of screw piles in tension and compression. To achieve this, a database of single helix load tested screw piles sand is collated and used for assessment of the method. The development of this CPT design approach reflects the process that was following for driven piles. UWA-SP21 has been developed through studies of onshore piles. The findings from this study can in the future be extrapolated appropriately to the larger pile sizes required offshore, in the same way that driven pile design has evolved.
838-843
Bittar, E.J.
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Lehane, B.M.
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Mahdavi, S.
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Blake, A.P.
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Richards, D.J.
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White, D.J.
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2022
Bittar, E.J.
31414ced-2364-43e1-a94f-49045e438ae9
Lehane, B.M.
7cf1e729-8a86-4a98-9306-fc25fe849b7e
Mahdavi, S.
ea57b6db-7ff5-4cf6-84d7-487fecb4ff97
Blake, A.P.
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Richards, D.J.
a58ea81e-443d-4dab-8d97-55d76a43d57e
White, D.J.
a986033d-d26d-4419-a3f3-20dc54efce93
Bittar, E.J., Lehane, B.M., Mahdavi, S., Blake, A.P., Richards, D.J. and White, D.J.
(2022)
A review of a CPT based axial capacity prediction of screw piles in sand.
Gottardi, Guido and Tonni, Laura
(eds.)
In Cone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022.
CRC Press.
.
(doi:10.1201/9781003308829-124).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Screw piles are widely used in onshore engineering applications and have recently been considered as an alternative foundation solution for offshore wind turbines (OWTs) supported on jacket structures. The high loads required to support such structures demand a considerable up-scaling of the screw pile geometry typically used onshore. Driven piles followed a similar upscaling process for their use in offshore structures and the CPT tip resistance (qc) value is now commonly used directly in design methods for both onshore and offshore driven piles. This paper evaluates the performance of a new CPT-based design method (UWA-SP-21) to predict the axial capacity of screw piles in tension and compression. To achieve this, a database of single helix load tested screw piles sand is collated and used for assessment of the method. The development of this CPT design approach reflects the process that was following for driven piles. UWA-SP21 has been developed through studies of onshore piles. The findings from this study can in the future be extrapolated appropriately to the larger pile sizes required offshore, in the same way that driven pile design has evolved.
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A review of a CPT based axial capacity prediction of screw piles in sand_25_01_28_15_35_24
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Published date: 2022
Venue - Dates:
5th International Symposium on Cone Penetration Testing, CPT 2022, , Bologna, Italy, 2022-06-08 - 2022-06-10
Identifiers
Local EPrints ID: 497640
URI: http://eprints.soton.ac.uk/id/eprint/497640
PURE UUID: 146d8b9f-5bc2-413f-be4b-353982f29b05
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Date deposited: 28 Jan 2025 18:02
Last modified: 29 Jan 2025 02:55
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Contributors
Author:
E.J. Bittar
Author:
B.M. Lehane
Author:
S. Mahdavi
Editor:
Guido Gottardi
Editor:
Laura Tonni
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