Stability analysis of laterally loaded trees based on tree-root-soil interaction
This paper presents the development of a numerical model for simulating tree stability considering tree-root-soil interaction. This model is validated against tree pulling test results for three tree species by comparing the derived load-deflection curves from the numerical model with those obtained...
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| Awduron Eraill: | |
| Fformat: | Journal Article |
| Iaith: | English |
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2021
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| Mynediad Ar-lein: | https://hdl.handle.net/10356/152848 |
| _version_ | 1826122764657885184 |
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| author | Kim, Yongmin Rahardjo, Harianto Lee, Daryl Tsen-Tieng |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Kim, Yongmin Rahardjo, Harianto Lee, Daryl Tsen-Tieng |
| author_sort | Kim, Yongmin |
| collection | NTU |
| description | This paper presents the development of a numerical model for simulating tree stability considering tree-root-soil interaction. This model is validated against tree pulling test results for three tree species by comparing the derived load-deflection curves from the numerical model with those obtained from the field experiments. Experimental overall stiffness of a tree is calculated based on the tree pulling tests and is implemented in the numerical simulations. A series of numerical tree stability analyses for a tree with various geometries and properties is performed to investigate the effects of influencing parameters on the lateral resistance behavior of the trees. Through comparison with the results of tree pulling tests, the three-dimensional (3D) numerical results from the present study is found to be in good agreement with the general trend observed from the field measurements and thus, the numerical model represents a realistic tree-root-soil interaction for laterally loaded trees. In addition, numerical analysis results confirm the fact that the lateral behavior of the tree is strongly dependent on the tree geometries (i.e., trunk diameter and rooting depth), and elastic modulus of trees and soils. |
| first_indexed | 2024-10-01T05:53:50Z |
| format | Journal Article |
| id | ntu-10356/152848 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:53:50Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1528482021-10-08T07:00:54Z Stability analysis of laterally loaded trees based on tree-root-soil interaction Kim, Yongmin Rahardjo, Harianto Lee, Daryl Tsen-Tieng School of Civil and Environmental Engineering Engineering::Environmental engineering Tree Stability Tree-root-soil System This paper presents the development of a numerical model for simulating tree stability considering tree-root-soil interaction. This model is validated against tree pulling test results for three tree species by comparing the derived load-deflection curves from the numerical model with those obtained from the field experiments. Experimental overall stiffness of a tree is calculated based on the tree pulling tests and is implemented in the numerical simulations. A series of numerical tree stability analyses for a tree with various geometries and properties is performed to investigate the effects of influencing parameters on the lateral resistance behavior of the trees. Through comparison with the results of tree pulling tests, the three-dimensional (3D) numerical results from the present study is found to be in good agreement with the general trend observed from the field measurements and thus, the numerical model represents a realistic tree-root-soil interaction for laterally loaded trees. In addition, numerical analysis results confirm the fact that the lateral behavior of the tree is strongly dependent on the tree geometries (i.e., trunk diameter and rooting depth), and elastic modulus of trees and soils. National Parks Board The findings presented in this paper are based on the project “Eye on Trees (EOT)” that is supported by a research grant No. M4061379 from the Nation Parks Board, Singapore. 2021-10-08T07:00:54Z 2021-10-08T07:00:54Z 2020 Journal Article Kim, Y., Rahardjo, H. & Lee, D. T. (2020). Stability analysis of laterally loaded trees based on tree-root-soil interaction. Urban Forestry & Urban Greening, 49, 126639-. https://dx.doi.org/10.1016/j.ufug.2020.126639 1618-8667 https://hdl.handle.net/10356/152848 10.1016/j.ufug.2020.126639 49 126639 en M4061379 Urban Forestry & Urban Greening © 2020 Elsevier GmbH. All rights reserved |
| spellingShingle | Engineering::Environmental engineering Tree Stability Tree-root-soil System Kim, Yongmin Rahardjo, Harianto Lee, Daryl Tsen-Tieng Stability analysis of laterally loaded trees based on tree-root-soil interaction |
| title | Stability analysis of laterally loaded trees based on tree-root-soil interaction |
| title_full | Stability analysis of laterally loaded trees based on tree-root-soil interaction |
| title_fullStr | Stability analysis of laterally loaded trees based on tree-root-soil interaction |
| title_full_unstemmed | Stability analysis of laterally loaded trees based on tree-root-soil interaction |
| title_short | Stability analysis of laterally loaded trees based on tree-root-soil interaction |
| title_sort | stability analysis of laterally loaded trees based on tree root soil interaction |
| topic | Engineering::Environmental engineering Tree Stability Tree-root-soil System |
| url | https://hdl.handle.net/10356/152848 |
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