Accumulated plastic strain behavior of granite residual soil under traffic loading

Yin, S; Liu, P; Kong, L; Zhang, X; Qi, Y; Huang, J

Accumulated plastic strain behavior of granite residual soil under traffic loading

Yin, S Liu, P Kong, L Zhang, X Qi, Y

Huang, J

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Soil Dynamics and Earthquake Engineering, 2023, 164, pp. 107617
Issue Date:: 2023-01-01

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Field	Value	Language
dc.contributor.author	Yin, S
dc.contributor.author	Liu, P
dc.contributor.author	Kong, L
dc.contributor.author	Zhang, X
dc.contributor.author	Qi, Y https://orcid.org/0000-0002-3486-2130
dc.contributor.author	Huang, J
dc.date.accessioned	2023-01-12T22:51:11Z
dc.date.available	2023-01-12T22:51:11Z
dc.date.issued	2023-01-01
dc.identifier.citation	Soil Dynamics and Earthquake Engineering, 2023, 164, pp. 107617
dc.identifier.issn	0267-7261
dc.identifier.uri	http://hdl.handle.net/10453/164923
dc.description.abstract	In this study, the accumulated plastic strain (APS) of granite residual soil (GRS) under traffic loading is investigated via cyclic hollow-cylinder and triaxial tests. GRS is a special type of soil that is found widely in the hot and rainy areas of southern China. Because of insufficient understanding of the cumulative plastic deformation of GRS, how the dynamic stress amplitude, degree of saturation, effective consolidation stress, and stress path affect the APS under loading cycles is explored and analyzed. The results show that the effective consolidation stress inhibits the development of APS, whereas the dynamic stress amplitude promotes it. The APS of GRS increases with the degree of soil saturation, and its noticeable water-softening characteristics become the least favorable factor for soil deformation. The combined action of water softening and principal stress rotation helps to increase the APS significantly, and it leads to the emergence of an APS developmental curve that differs from the stable curve. Accounting for the water-softening characteristics of GRS and various stress conditions, a simple and easily adopted APS model is developed to predict the evolution of APS with loading cycles. Although specific to GRS in China, the findings of this study are expected to apply more widely to other weathered geomaterials.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Soil Dynamics and Earthquake Engineering
dc.relation.isbasedon	10.1016/j.soildyn.2022.107617
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0404 Geophysics, 0905 Civil Engineering
dc.subject.classification	Strategic, Defence & Security Studies
dc.title	Accumulated plastic strain behavior of granite residual soil under traffic loading
dc.type	Journal Article
utslib.citation.volume	164
utslib.for	0404 Geophysics
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
utslib.copyright.status	embargoed	*
utslib.copyright.embargo	2025-01-01T00:00:00+1000Z
dc.date.updated	2023-01-12T22:50:18Z
pubs.publication-status	Published
pubs.volume	164

Abstract:

In this study, the accumulated plastic strain (APS) of granite residual soil (GRS) under traffic loading is investigated via cyclic hollow-cylinder and triaxial tests. GRS is a special type of soil that is found widely in the hot and rainy areas of southern China. Because of insufficient understanding of the cumulative plastic deformation of GRS, how the dynamic stress amplitude, degree of saturation, effective consolidation stress, and stress path affect the APS under loading cycles is explored and analyzed. The results show that the effective consolidation stress inhibits the development of APS, whereas the dynamic stress amplitude promotes it. The APS of GRS increases with the degree of soil saturation, and its noticeable water-softening characteristics become the least favorable factor for soil deformation. The combined action of water softening and principal stress rotation helps to increase the APS significantly, and it leads to the emergence of an APS developmental curve that differs from the stable curve. Accounting for the water-softening characteristics of GRS and various stress conditions, a simple and easily adopted APS model is developed to predict the evolution of APS with loading cycles. Although specific to GRS in China, the findings of this study are expected to apply more widely to other weathered geomaterials.

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http://hdl.handle.net/10453/164923