Use of piezoball penetrometers for measuring shear strength and consolidation characteristics of soft soil

Cathal Joseph Colreavy

doi:10.4225/23/5976cbaecabf1

Use of piezoball penetrometers for measuring shear strength and consolidation characteristics of soft soil

Cathal Joseph Colreavy

Research output: Thesis › Doctoral Thesis

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Abstract

The potential of piezoball penetrometers to characterise soft sediments was investigated. Novel field and laboratory scale devices were developed and a database of tests In soft soils was compiled. The performance of these devices during normal penetration and dissipation was assessed. The accuracy of strength and consolidation property measurements using the piezoball was evaluated by comparison with other field and laboratory techniques. A new method of Interpreting consolidation characteristics from piezoball dissipation tests was proposed. The effect of the drainage condition on interpreted soli parameters was demonstrated and a means of identifying drainage conditions during penetration was suggested.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Randolph, Mark, Supervisor O'Loughlin, Conleth, Supervisor
Award date	7 Jul 2017
DOIs	https://doi.org/10.4225/23/5976cbaecabf1
Publication status	Unpublished - 2017

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10.4225/23/5976cbaecabf1

THESIS - DOCTOR OF PHILOSOPHY - COLREAVY Cathal Joseph - 2017
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Cite this

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title = "Use of piezoball penetrometers for measuring shear strength and consolidation characteristics of soft soil",

abstract = "The potential of piezoball penetrometers to characterise soft sediments was investigated. Novel field and laboratory scale devices were developed and a database of tests In soft soils was compiled. The performance of these devices during normal penetration and dissipation was assessed. The accuracy of strength and consolidation property measurements using the piezoball was evaluated by comparison with other field and laboratory techniques. A new method of Interpreting consolidation characteristics from piezoball dissipation tests was proposed. The effect of the drainage condition on interpreted soli parameters was demonstrated and a means of identifying drainage conditions during penetration was suggested.",

keywords = "Geotechnical engineering, Offshore geotechnics, Soft soil, Undrained shear strength, Consolidation characteristics, Full-flow penetrometers, Piezoball",

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year = "2017",

doi = "10.4225/23/5976cbaecabf1",

language = "English",

school = "The University of Western Australia",

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AB - The potential of piezoball penetrometers to characterise soft sediments was investigated. Novel field and laboratory scale devices were developed and a database of tests In soft soils was compiled. The performance of these devices during normal penetration and dissipation was assessed. The accuracy of strength and consolidation property measurements using the piezoball was evaluated by comparison with other field and laboratory techniques. A new method of Interpreting consolidation characteristics from piezoball dissipation tests was proposed. The effect of the drainage condition on interpreted soli parameters was demonstrated and a means of identifying drainage conditions during penetration was suggested.

KW - Geotechnical engineering

KW - Offshore geotechnics

KW - Soft soil

KW - Undrained shear strength

KW - Consolidation characteristics

KW - Full-flow penetrometers

KW - Piezoball

U2 - 10.4225/23/5976cbaecabf1

DO - 10.4225/23/5976cbaecabf1

M3 - Doctoral Thesis

ER -

Use of piezoball penetrometers for measuring shear strength and consolidation characteristics of soft soil

Abstract

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