Development of a novel spudcan shape for easing punch-through

Joonmo Lee

doi:10.26182/5ddf40661f8fe

Development of a novel spudcan shape for easing punch-through

Joonmo Lee

Oceans Graduate School

Research output: Thesis › Doctoral Thesis

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Abstract

Spudcan punch-through in sand-over-clay and stiff-over-soft clay deposits was investigated through centrifuge tests and numerical analyses. The aim was to identify and optimise a spudcan shape that can be effective at easing punch-through. A number of spudcan shapes; varying under side profile, number of holes through the spudcan base, and length of skirt around the bottom periphery of the spudcan; were tested. Overall, only the skirt showed positive influence at easing punch-through. A spudcan with a 0.23 times diameter skirt was proposed for easing punch-through on both sand-over-clay and stiff-over-soft clay, with approaches for assessing corresponding penetrating resistance profiles proposed.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Hossain, Muhammad, Supervisor Kim, Youngho, Supervisor Cassidy, Mark, Supervisor Hu, Yuxia, Supervisor
Award date	5 Nov 2019
DOIs	https://doi.org/10.26182/5ddf40661f8fe
Publication status	Unpublished - 2019

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10.26182/5ddf40661f8fe

THESIS - DOCTOR OF PHILOSOPHY - LEE Joonmo - 2019
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Cite this

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title = "Development of a novel spudcan shape for easing punch-through",

abstract = "Spudcan punch-through in sand-over-clay and stiff-over-soft clay deposits was investigated through centrifuge tests and numerical analyses. The aim was to identify and optimise a spudcan shape that can be effective at easing punch-through. A number of spudcan shapes; varying under side profile, number of holes through the spudcan base, and length of skirt around the bottom periphery of the spudcan; were tested. Overall, only the skirt showed positive influence at easing punch-through. A spudcan with a 0.23 times diameter skirt was proposed for easing punch-through on both sand-over-clay and stiff-over-soft clay, with approaches for assessing corresponding penetrating resistance profiles proposed. ",

keywords = "Spudcan geometry, Centrifuge test, Punch-through, Large deformation finite element, Sand-over-Clay, Skirted spudcan, Stiff-over-Soft Clay, Prediction model",

author = "Joonmo Lee",

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doi = "10.26182/5ddf40661f8fe",

language = "English",

school = "The University of Western Australia",

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AU - Lee, Joonmo

PY - 2019

Y1 - 2019

N2 - Spudcan punch-through in sand-over-clay and stiff-over-soft clay deposits was investigated through centrifuge tests and numerical analyses. The aim was to identify and optimise a spudcan shape that can be effective at easing punch-through. A number of spudcan shapes; varying under side profile, number of holes through the spudcan base, and length of skirt around the bottom periphery of the spudcan; were tested. Overall, only the skirt showed positive influence at easing punch-through. A spudcan with a 0.23 times diameter skirt was proposed for easing punch-through on both sand-over-clay and stiff-over-soft clay, with approaches for assessing corresponding penetrating resistance profiles proposed.

AB - Spudcan punch-through in sand-over-clay and stiff-over-soft clay deposits was investigated through centrifuge tests and numerical analyses. The aim was to identify and optimise a spudcan shape that can be effective at easing punch-through. A number of spudcan shapes; varying under side profile, number of holes through the spudcan base, and length of skirt around the bottom periphery of the spudcan; were tested. Overall, only the skirt showed positive influence at easing punch-through. A spudcan with a 0.23 times diameter skirt was proposed for easing punch-through on both sand-over-clay and stiff-over-soft clay, with approaches for assessing corresponding penetrating resistance profiles proposed.

KW - Spudcan geometry

KW - Centrifuge test

KW - Punch-through

KW - Large deformation finite element

KW - Sand-over-Clay

KW - Skirted spudcan

KW - Stiff-over-Soft Clay

KW - Prediction model

U2 - 10.26182/5ddf40661f8fe

DO - 10.26182/5ddf40661f8fe

M3 - Doctoral Thesis

ER -

Development of a novel spudcan shape for easing punch-through

Abstract

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