Time-dependent evolution in bearing capacity of driven piles in clays combining installation, consolidation and subsequent loading

Cui, J; Rao, P; Li, J; Chen, Q; Nimbalkar, S

Time-dependent evolution in bearing capacity of driven piles in clays combining installation, consolidation and subsequent loading

Cui, J Rao, P Li, J Chen, Q Nimbalkar, S

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Publisher:: ICE publishing
Publication Type:: Journal Article
Citation:: Proceedings of the Institution of Civil Engineers: Geotechnical Engineering, 2022, pp. 1-47
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Cui, J
dc.contributor.author	Rao, P
dc.contributor.author	Li, J
dc.contributor.author	Chen, Q
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396
dc.date.accessioned	2023-04-27T23:37:06Z
dc.date.available	2023-04-27T23:37:06Z
dc.date.issued	2022-01-01
dc.identifier.citation	Proceedings of the Institution of Civil Engineers: Geotechnical Engineering, 2022, pp. 1-47
dc.identifier.issn	1353-2618
dc.identifier.issn	1751-8563
dc.identifier.uri	http://hdl.handle.net/10453/170128
dc.description.abstract	The analysis of time-dependent variation in the axial capacity of the driven pile is difficult yet critical for geotechnical engineers. To investigate the short-term evolution of bearing capacity of driven piles, a two-dimensional finite element (FE) model is developed using ABAQUS program. The pile installation, soil consolidation and loading are incorporated in an integrated FE model. Changes in excess pore pressure and void ratio of surrounding soil are investigated to evaluate the consolidation mechanism. The findings reveal that the excess pore water pressure dissipated is the primary cause of short-term pile bearing capacity evolution. Excess pore water pressure is dissipated, lowering the void ratio and increasing the strength and stiffness of surrounding soil. The effect of the permeability coefficient is also discussed. The permeability coefficient affects the rate of evolution but does not affect its magnitude. A centrifuge model test is used to verify the numerical results. The findings of this study may serve as a guide for improved design and construction of driven piles.
dc.language	en
dc.publisher	ICE publishing
dc.relation.ispartof	Proceedings of the Institution of Civil Engineers: Geotechnical Engineering
dc.relation.isbasedon	10.1680/jgeen.21.00200
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0503 Soil Sciences, 0905 Civil Engineering
dc.title	Time-dependent evolution in bearing capacity of driven piles in clays combining installation, consolidation and subsequent loading
dc.type	Journal Article
utslib.for	0503 Soil Sciences
utslib.for	0905 Civil Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access	*
dc.date.updated	2023-04-27T23:37:02Z
pubs.publication-status	Published

Abstract:

The analysis of time-dependent variation in the axial capacity of the driven pile is difficult yet critical for geotechnical engineers. To investigate the short-term evolution of bearing capacity of driven piles, a two-dimensional finite element (FE) model is developed using ABAQUS program. The pile installation, soil consolidation and loading are incorporated in an integrated FE model. Changes in excess pore pressure and void ratio of surrounding soil are investigated to evaluate the consolidation mechanism. The findings reveal that the excess pore water pressure dissipated is the primary cause of short-term pile bearing capacity evolution. Excess pore water pressure is dissipated, lowering the void ratio and increasing the strength and stiffness of surrounding soil. The effect of the permeability coefficient is also discussed. The permeability coefficient affects the rate of evolution but does not affect its magnitude. A centrifuge model test is used to verify the numerical results. The findings of this study may serve as a guide for improved design and construction of driven piles.

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http://hdl.handle.net/10453/170128