Analysis of Matric Suction Effects Induced by Tree Roots on Rail Track Subgrade

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Show simple item record Fatahi, Behzad en_US Khabbaz, Hadi en_US Indraratna, Buddhima en_US
dc.contributor.editor John Goodall, Bill Singleton en_US 2010-05-28T10:01:57Z 2010-05-28T10:01:57Z 2008 en_US
dc.identifier 2008007993 en_US
dc.identifier.citation Fatahi Behzad, Khabbaz Hadi, and Indraratna Buddhima 2008, 'Analysis of Matric Suction Effects Induced by Tree Roots on Rail Track Subgrade', RTSA, Australia, pp. 599-610. en_US
dc.identifier.issn 0-8582-5783-1 en_US
dc.identifier.other E1UNSUBMIT en_US
dc.description.abstract This study investigates the eflects of vegetation on soil matric suction and ground deformation. This paper highlights the inter-related parameters contributing to the development of a conceptual evapo-transpiration and root water uptake equilibrium model that is then incorporated in a comprehensive numerical model. The developed numerical model based on the finite element analysis (ABAQUS) considers fully coupled flowdeformation behaviour of soil. The model formulation is based on the effective stress approach developed for unsaturated soils. Based on the proposed model, the distribution of the matric suction proflle adjacent to the tree has been numerically anaiysed. To validate the model, an array of field measurements conducted at Miram site in Victoria, Australia have been compared with the numerical predictions. Then behaviour of a single tree on improving soil behaviour underneath rail tracks has been described. II is found that root water uptake and associated matric suction stabilise the soft soil beneath railway lines and a pattern of trees grown systematically along rail corridors may olter a cost eltective and environmentally attractive solution for the soft ground improvement in the long-term. en_US
dc.language en_US
dc.publisher RTSA en_US
dc.relation.isbasedon NA en_US
dc.title Analysis of Matric Suction Effects Induced by Tree Roots on Rail Track Subgrade en_US
dc.parent Conference Proceedings: CORE2008 Conference on Railway Engineering en_US
dc.journal.volume en_US
dc.journal.number en_US
dc.publocation Australia en_US
dc.identifier.startpage 599 en_US
dc.identifier.endpage 610 en_US FEIT.Faculty of Engineering & Information Technology en_US
dc.conference Verified OK en_US
dc.for 090501 en_US
dc.personcode 103865 en_US
dc.personcode 102579 en_US
dc.personcode 0000052657 en_US
dc.percentage 100 en_US Civil Geotechnical Engineering en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom Conference on Railway Engineering en_US 20080907 en_US
dc.location.activity Perth, WA, Australia en_US
dc.description.keywords NA en_US

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