Analytical solution to axisymmetric consolidation in unsaturated soils with linearly depth-dependent initial conditions

Ho, L; Fatahi, B; Khabbaz, H

Analytical solution to axisymmetric consolidation in unsaturated soils with linearly depth-dependent initial conditions

Ho, L Fatahi, B

Khabbaz, H

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Publication Type:: Journal Article
Citation:: Computers and Geotechnics, 2016, 74 pp. 102 - 121
Issue Date:: 2016-04-01

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Field	Value	Language
dc.contributor.author	Ho, L	en_US
dc.contributor.author	Fatahi, B https://orcid.org/0000-0002-7920-6946	en_US
dc.contributor.author	Khabbaz, H https://orcid.org/0000-0001-6637-4601	en_US
dc.date.issued	2016-04-01	en_US
dc.identifier.citation	Computers and Geotechnics, 2016, 74 pp. 102 - 121	en_US
dc.identifier.issn	0266-352X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/41557
dc.description.abstract	© 2016. This paper introduces an analytical solution for the axisymmetric consolidation of unsaturated soils subjected to constant external loading. The analytical procedure employs variables separation and Laplace transformation techniques while capturing the uniform and linear initial excess pore pressure distributions with depth. Excess pore-air and pore-water pressures as functions of time, radial and vertical flows are determined using Laplace transforms, Fourier Bessel and sine series, respectively. In this study, the consolidation behavior, in terms of changes in excess pore-air and pore-water pressures and the average degree of consolidation, are investigated against the air to water permeability ratio. The effects of radial distance from the drain well on the dissipation rate are likewise highlighted in worked examples. Excess pore pressure isochrones and the matric suction varying with time are also presented.	en_US
dc.relation.ispartof	Computers and Geotechnics	en_US
dc.relation.isbasedon	10.1016/j.compgeo.2015.12.019	en_US
dc.subject.classification	Geological & Geomatics Engineering	en_US
dc.title	Analytical solution to axisymmetric consolidation in unsaturated soils with linearly depth-dependent initial conditions	en_US
dc.type	Journal Article
utslib.citation.volume	74	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
utslib.for	0915 Interdisciplinary Engineering	en_US
pubs.embargo.period	Not known	en_US
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
pubs.publication-status	Published	en_US
pubs.volume	74	en_US

Abstract:

© 2016. This paper introduces an analytical solution for the axisymmetric consolidation of unsaturated soils subjected to constant external loading. The analytical procedure employs variables separation and Laplace transformation techniques while capturing the uniform and linear initial excess pore pressure distributions with depth. Excess pore-air and pore-water pressures as functions of time, radial and vertical flows are determined using Laplace transforms, Fourier Bessel and sine series, respectively. In this study, the consolidation behavior, in terms of changes in excess pore-air and pore-water pressures and the average degree of consolidation, are investigated against the air to water permeability ratio. The effects of radial distance from the drain well on the dissipation rate are likewise highlighted in worked examples. Excess pore pressure isochrones and the matric suction varying with time are also presented.

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http://hdl.handle.net/10453/41557