Shear strength of a vegetated soil incorporating both root reinforcement and suction

Pallewattha, M; Indraratna, B; Heitor, A; Rujikiatkamjorn, C

Shear strength of a vegetated soil incorporating both root reinforcement and suction

Pallewattha, M Indraratna, B

Heitor, A Rujikiatkamjorn, C

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Publisher:: ELSEVIER SCIENCE BV
Publication Type:: Journal Article
Citation:: Transportation Geotechnics, 2019, 18, pp. 72-82
Issue Date:: 2019-03-01

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Field	Value	Language
dc.contributor.author	Pallewattha, M
dc.contributor.author	Indraratna, B https://orcid.org/0000-0002-9057-1514
dc.contributor.author	Heitor, A
dc.contributor.author	Rujikiatkamjorn, C
dc.date.accessioned	2020-05-12T01:18:23Z
dc.date.available	2020-05-12T01:18:23Z
dc.date.issued	2019-03-01
dc.identifier.citation	Transportation Geotechnics, 2019, 18, pp. 72-82
dc.identifier.issn	2214-3912
dc.identifier.issn	2214-3912
dc.identifier.uri	http://hdl.handle.net/10453/140653
dc.description.abstract	© 2018 Shear strength of the root permeated soil increases due to the mechanical effects of root reinforcement and most of the past studies have been conducted to capture this effect under saturated soil conditions. However, the soil adjacent to the tree roots is usually in an unsaturated condition and this leads to alterations in root-soil interaction mechanisms and associated shear strength of the root permeated soil system. In this paper, the increment in shear strength is studied considering both the effect of suction and root reinforcement patterns. A number of direct shear tests were conducted for different suction levels in root-permeated and unreinforced soil specimens. The results indicate that the shear strength behaviour of the soil-root system is governed by the level of suction and root failure patterns and a new mathematical model incorporating the effect of both parameters is proposed.
dc.language	English
dc.publisher	ELSEVIER SCIENCE BV
dc.relation.ispartof	Transportation Geotechnics
dc.relation.isbasedon	10.1016/j.trgeo.2018.11.005
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0905 Civil Engineering
dc.title	Shear strength of a vegetated soil incorporating both root reinforcement and suction
dc.type	Journal Article
utslib.citation.volume	18
utslib.for	0905 Civil Engineering
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
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2020-05-12T01:18:20Z
pubs.publication-status	Published
pubs.volume	18
utslib.start-page	72

Abstract:

© 2018 Shear strength of the root permeated soil increases due to the mechanical effects of root reinforcement and most of the past studies have been conducted to capture this effect under saturated soil conditions. However, the soil adjacent to the tree roots is usually in an unsaturated condition and this leads to alterations in root-soil interaction mechanisms and associated shear strength of the root permeated soil system. In this paper, the increment in shear strength is studied considering both the effect of suction and root reinforcement patterns. A number of direct shear tests were conducted for different suction levels in root-permeated and unreinforced soil specimens. The results indicate that the shear strength behaviour of the soil-root system is governed by the level of suction and root failure patterns and a new mathematical model incorporating the effect of both parameters is proposed.

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http://hdl.handle.net/10453/140653