Soil suction profile due to tree induced suction

Suction exerted by the roots water uptake of vegetation can have substantial effects on soil moisture, where it will influence the strength of the soil. However, rainfall pattern is one of the major factors that influence the changes of suction and lead to instability in unsaturated soils. This stud...

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Main Author: Sulaiman, Farah Farhana
Format: Thesis
Language:English
Published: 2012
Subjects:
Online Access:http://eprints.utm.my/id/eprint/31531/5/FarahFarhanaSulaimanmaMFKA2012.pdf
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spelling my-utm-ep.315312017-09-21T06:06:28Z Soil suction profile due to tree induced suction 2012 Sulaiman, Farah Farhana TA Engineering (General). Civil engineering (General) Suction exerted by the roots water uptake of vegetation can have substantial effects on soil moisture, where it will influence the strength of the soil. However, rainfall pattern is one of the major factors that influence the changes of suction and lead to instability in unsaturated soils. This study discuss an exploration of soil suction is affected by water uptake by tree root at various condition from wet season (high rainfall) to dry season (prolonged no rainfall). The suction at study area are measured using Jet-fill tensiometers and Gypsum moisture block that placed at various depths and distances near vicinity of tree. A total of 18 Jet-fill tensiometers and Gypsum moisture blocks were installed in 6 stations, 3 stations at sloping ground and 3 stations at flat area. Each station consists of 3 Jet-fill tensiometers which at top, middle and bottom of the root zone to monitor the matric suction changes. The results of the soil suction obtained were used as an input data to develop soil suction contour using GID 7.2 software. From analysis of the pattern soil suction profile shown the suction rate is higher at near vicinity of tree and significant increase during dry period. However, a reduction in suction during high rainfall.The effect of tree induces suction will generate high suction in soil and can created dry condition to increase shear strength. 2012 Thesis http://eprints.utm.my/id/eprint/31531/ http://eprints.utm.my/id/eprint/31531/5/FarahFarhanaSulaimanmaMFKA2012.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic TA Engineering (General)
Civil engineering (General)
spellingShingle TA Engineering (General)
Civil engineering (General)
Sulaiman, Farah Farhana
Soil suction profile due to tree induced suction
description Suction exerted by the roots water uptake of vegetation can have substantial effects on soil moisture, where it will influence the strength of the soil. However, rainfall pattern is one of the major factors that influence the changes of suction and lead to instability in unsaturated soils. This study discuss an exploration of soil suction is affected by water uptake by tree root at various condition from wet season (high rainfall) to dry season (prolonged no rainfall). The suction at study area are measured using Jet-fill tensiometers and Gypsum moisture block that placed at various depths and distances near vicinity of tree. A total of 18 Jet-fill tensiometers and Gypsum moisture blocks were installed in 6 stations, 3 stations at sloping ground and 3 stations at flat area. Each station consists of 3 Jet-fill tensiometers which at top, middle and bottom of the root zone to monitor the matric suction changes. The results of the soil suction obtained were used as an input data to develop soil suction contour using GID 7.2 software. From analysis of the pattern soil suction profile shown the suction rate is higher at near vicinity of tree and significant increase during dry period. However, a reduction in suction during high rainfall.The effect of tree induces suction will generate high suction in soil and can created dry condition to increase shear strength.
format Thesis
qualification_level Master's degree
author Sulaiman, Farah Farhana
author_facet Sulaiman, Farah Farhana
author_sort Sulaiman, Farah Farhana
title Soil suction profile due to tree induced suction
title_short Soil suction profile due to tree induced suction
title_full Soil suction profile due to tree induced suction
title_fullStr Soil suction profile due to tree induced suction
title_full_unstemmed Soil suction profile due to tree induced suction
title_sort soil suction profile due to tree induced suction
granting_institution Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department Faculty of Civil Engineering
publishDate 2012
url http://eprints.utm.my/id/eprint/31531/5/FarahFarhanaSulaimanmaMFKA2012.pdf
_version_ 1747815826478596096