Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prediction of Unsaturated Soil Diffusivity Coefficient from SWCC and Saturated Permeability Tests
The diffusion coefficient is an important unsaturated soil parameter for the estimation of the moisture movement in the soil mass. The diffusion coefficient can be measured in a laboratory on Shelby tube soil specimens subjected to specified boundary conditions using thermocouple psychrometers. This parameter can also be estimated by using the soil water characteristic curve (SWCC) and saturated permeability coefficient of the soil. This research paper presents the results of the SWCC and permeability tests on an unsaturated soil and predicts the diffusion coefficient. Although there is significant difference between the diffusivity parameters obtained using the SWCC and permeability test results, the difference between the column drying test and the SWCC and permeability test results is substantial. The diffusivity coefficients obtained from the psychrometer is 103 times higher than those from the SWCC and permeability tests.
Prediction of Unsaturated Soil Diffusivity Coefficient from SWCC and Saturated Permeability Tests
The diffusion coefficient is an important unsaturated soil parameter for the estimation of the moisture movement in the soil mass. The diffusion coefficient can be measured in a laboratory on Shelby tube soil specimens subjected to specified boundary conditions using thermocouple psychrometers. This parameter can also be estimated by using the soil water characteristic curve (SWCC) and saturated permeability coefficient of the soil. This research paper presents the results of the SWCC and permeability tests on an unsaturated soil and predicts the diffusion coefficient. Although there is significant difference between the diffusivity parameters obtained using the SWCC and permeability test results, the difference between the column drying test and the SWCC and permeability test results is substantial. The diffusivity coefficients obtained from the psychrometer is 103 times higher than those from the SWCC and permeability tests.
Prediction of Unsaturated Soil Diffusivity Coefficient from SWCC and Saturated Permeability Tests
Tian, Yi (Autor:in) / Bulut, Rifat (Autor:in)
Geo-Hubei 2014 International Conference on Sustainable Civil Infrastructure ; 2014 ; Yichang, Hubei, China
23.06.2014
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Prediction of Unsaturated Soil Diffusivity Coefficient from SWCC and Saturated Permeability Tests
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