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Tree stability in an improved soil to withstand wind loading.

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Tree stability in an improved soil to withstand wind loading.

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dc.contributor.author Rahardjo, Harianto.
dc.contributor.author Harnas, F. R.
dc.contributor.author Leong, Eng Choon.
dc.contributor.author Tan, Puay-Yok.
dc.contributor.author Fong, Yok-King.
dc.contributor.author Sim, E. K.
dc.date.accessioned 2011-12-07T01:12:49Z
dc.date.available 2011-12-07T01:12:49Z
dc.date.copyright 2009
dc.date.issued 2011-12-07
dc.identifier.citation Rahardjo, H., Harnas, F. R., Leong, E. C., Tan, P. Y., Fong, Y.-K., & Sim, E. K. (2009). Tree stability in an improved soil to withstand wind loading. Urban forestry and urban greening, 8(4), 237-247.
dc.identifier.uri http://hdl.handle.net/10220/7340
dc.description.abstract As trees are planted in close proximity to properties and humans in a dense city like Singapore, uprooting of trees can pose safety concerns. Previous research studies have shown that soil properties are important factors that govern tree stability. Soil properties can be improved by mixing top soil (TS) with coarse-grained soil. The effects of soil improvement using coarse-grained soil on tree stability were investigated in this study. Granite chip was used as coarse-grained soil to improve the original top soil. Static analysis and finite element modeling were performed to study tree stability in an improved soil. Factors investigated include root geometry and soil shear strength parameter. Finite element results showed good agreement with static analysis in determining the maximum wind force needed to uproot the tree. Parametric study showed that the wind force needed to uproot the tree was influenced by the mode of failure and the magnitude was dependant on the root geometry and the soil properties. A mixture of 20% top soil and 80% granite chip by dry mass was the optimum mixture for withstanding the maximum wind force needed to uproot the tree.
dc.language.iso en
dc.relation.ispartofseries Urban forestry and urban greening
dc.rights © 2009 Elsevier Ltd.
dc.subject DRNTU::Engineering::Environmental engineering::Environmental protection.
dc.subject DRNTU::Engineering::Civil engineering::Geotechnical.
dc.title Tree stability in an improved soil to withstand wind loading.
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.1016/j.ufug.2009.07.001
dc.description.version Accepted version

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