Abstract
With the increasing demand in water supply and either for generation or for irrigation and human consumption, water conveyance structures must guarantee a maximum efficiency at the lowest construction and maintenance costs. Using thin geotextiles allow very low permeability and very high transmissivity. Conclusion/Recommendations: The system constructs a continues, low roughness on the entire section of canal. In this research study the use of geotextile in order to stabilize and increase in shear strength of sandy soils has been investigated. The results show an increase about 44% of shear strength that cause an enhancement of stability of soils.
Highlights
In conveyance structures, efficiency is measured on the amount of water transported in safety conditions, which must be as close as possible to the amount of inlet water
The best extension for placing geotextile in sandy soils with gravels is the extension of principle strain in soil. In this case according to Columb formula the maximum shear strength in soil is obtained theoretically
It is observed during experiments that due to increasing shear strength of sandy soil reinforced by geotextile, the stability of soil in slopes increases
Summary
Efficiency is measured on the amount of water transported in safety conditions, which must be as close as possible to the amount of inlet water. Geosynthetics are textiles or some polymer material that their main properties are stability against deterioration factors which exist in soils or water (Saran, 2010). Leaning on before studies, in this research study, it is emphasized on special extension for placing reinforcement in sandy soils that would more increase the angle of internal friction of soils.
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