Ali, Nazri and Mohammed Abdullahi, Mu'azu (2012) Lateral stress induced due root-water-uptake in unsaturated soils. In: 2nd International Conference on Geotechnique, Construction Materials and Environment, Nov.14-16, 2012, Kuala Lumpur, Malaysia.
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Abstract
A two-dimensional (2-D) lateral stress was modeled as a result of matric suction change caused by vegetative induced moisture transfer. The negative pore-water pressures are estimated through governing partial differential equations for unsaturated soils. The results of the of simulated root water uptake are used as an input for the prediction of 2-D lateral stress in a stressdeformation analysis in an uncoupled manner. The soil is allow to expand and contract free laterally, as the as water is being abstracted from the soil. A mature Lime tree located on a Boulder clay subsoil for period covering a full spring/summer drying period was used as a case study. The result shows interdependence of lateral and vertical stress generated resulting from root water-uptake.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | unsaturated soils, numerical-simulation, water-uptake, stress-deformation, experimental |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Civil Engineering |
| ID Code: | 44655 |
| Deposited By: | Fazli Masari |
| Deposited On: | 15 Apr 2015 01:06 |
| Last Modified: | 26 Jul 2017 03:47 |
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