Frost Heave in Coarse-grained Soils: Experimental Evidence and Numerical modelling

Teng, J; Liu, J; Zhang, S; Sheng, D

Frost Heave in Coarse-grained Soils: Experimental Evidence and Numerical modelling

Teng, J Liu, J Zhang, S Sheng, D

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Publisher:: ICE publishing
Publication Type:: Journal Article
Citation:: Geotechnique, 2022, pp. 1-43
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Teng, J
dc.contributor.author	Liu, J
dc.contributor.author	Zhang, S
dc.contributor.author	Sheng, D https://orcid.org/0000-0002-1665-6931
dc.date.accessioned	2023-04-03T02:05:57Z
dc.date.available	2023-04-03T02:05:57Z
dc.date.issued	2022-01-01
dc.identifier.citation	Geotechnique, 2022, pp. 1-43
dc.identifier.issn	0016-8505
dc.identifier.issn	1751-7656
dc.identifier.uri	http://hdl.handle.net/10453/169055
dc.description.abstract	Frost heave in coarse-grained soils caused by vapour transfer has attracted much attention, but little experimental or numerical evidence has been reported thus far. A series of laboratory experiments are carried out by a frost heave apparatus and an X-ray micro computed tomography instrument. The only water supply mechanism to the tested specimen is vapour transfer. The results indicate that considerable frost heave occurs in coarse-grained soil specimens with a zero fines content. The ratio of frost heave to the initial height can reach 13.8% and 25.1% at 14 days and 18 days, respectively. Ice crystals first grow in pores causing soil particle to rotate and move and soil porosity to increase. With continued ice crystal growth, they eventually become connected and form an ice lens. If a constant temperature gradient is applied, only one horizontal ice lens is formed, which differs from the layered ice lenses observed in fine-graded soils. A new numerical model is developed to simulate ice formation and frost heave in coarse-grained soils, which considers the process of vapour transfer and desublimation. The predicted frost heave results agree well with the measured results. This study provides a novel explanation for the frost heave mechanism in coarse-grained soils.
dc.language	en
dc.publisher	ICE publishing
dc.relation.ispartof	Geotechnique
dc.relation.isbasedon	10.1680/jgeot.21.00182
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0907 Environmental Engineering, 0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	Geological & Geomatics Engineering
dc.title	Frost Heave in Coarse-grained Soils: Experimental Evidence and Numerical modelling
dc.type	Journal Article
utslib.for	0905 Civil Engineering
utslib.for	0907 Environmental Engineering
utslib.for	0914 Resources Engineering and Extractive Metallurgy
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
utslib.copyright.status	closed_access	*
dc.date.updated	2023-04-03T02:05:55Z
pubs.publication-status	Published

Abstract:

Frost heave in coarse-grained soils caused by vapour transfer has attracted much attention, but little experimental or numerical evidence has been reported thus far. A series of laboratory experiments are carried out by a frost heave apparatus and an X-ray micro computed tomography instrument. The only water supply mechanism to the tested specimen is vapour transfer. The results indicate that considerable frost heave occurs in coarse-grained soil specimens with a zero fines content. The ratio of frost heave to the initial height can reach 13.8% and 25.1% at 14 days and 18 days, respectively. Ice crystals first grow in pores causing soil particle to rotate and move and soil porosity to increase. With continued ice crystal growth, they eventually become connected and form an ice lens. If a constant temperature gradient is applied, only one horizontal ice lens is formed, which differs from the layered ice lenses observed in fine-graded soils. A new numerical model is developed to simulate ice formation and frost heave in coarse-grained soils, which considers the process of vapour transfer and desublimation. The predicted frost heave results agree well with the measured results. This study provides a novel explanation for the frost heave mechanism in coarse-grained soils.

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http://hdl.handle.net/10453/169055