Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluation of Unsaturated Water Flow Features of Compacted Soil Subjected to Horizontal and Vertical Water Infiltration
The objective of this study is to compare the unsaturated water flow features during horizontal and vertical infiltration. To follow the moisture variation (water content θ (z, t)), the time domain reflectometry method is used. The retention curve is obtained by the filter paper method. The suction test results are interpreted by the Van Genuchten (Soil Sci Soc Am J 44(5):892–898, 1980) model. These results allow the determination of the relationships between diffusivity and water content (D(θ)) and hydraulic conductivity and water content (K(θ)) by applying the instantaneous profiles method. The results showed that the unsaturated water flow parameters are influenced by the flow direction and the gravity effect. The diffusivity values in the vertical infiltration column are higher than those measured in the horizontal infiltration column. The experimental points calibrated with the models of Brooks and Corey (J Irrig Drain Div 92(2):61–88, 1966) and Campbell (Soil Sci 117(6):311–314, 1974) have shown that this model fairly well describes the hydraulic conductivity evolution versus water content.
Evaluation of Unsaturated Water Flow Features of Compacted Soil Subjected to Horizontal and Vertical Water Infiltration
The objective of this study is to compare the unsaturated water flow features during horizontal and vertical infiltration. To follow the moisture variation (water content θ (z, t)), the time domain reflectometry method is used. The retention curve is obtained by the filter paper method. The suction test results are interpreted by the Van Genuchten (Soil Sci Soc Am J 44(5):892–898, 1980) model. These results allow the determination of the relationships between diffusivity and water content (D(θ)) and hydraulic conductivity and water content (K(θ)) by applying the instantaneous profiles method. The results showed that the unsaturated water flow parameters are influenced by the flow direction and the gravity effect. The diffusivity values in the vertical infiltration column are higher than those measured in the horizontal infiltration column. The experimental points calibrated with the models of Brooks and Corey (J Irrig Drain Div 92(2):61–88, 1966) and Campbell (Soil Sci 117(6):311–314, 1974) have shown that this model fairly well describes the hydraulic conductivity evolution versus water content.
Evaluation of Unsaturated Water Flow Features of Compacted Soil Subjected to Horizontal and Vertical Water Infiltration
Iran J Sci Technol Trans Civ Eng
Gaidi, Chahira Sayad (Autor:in) / Gaidi, Laouni (Autor:in) / Merdji, Ali (Autor:in) / Roy, Sandipan (Autor:in)
01.06.2024
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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