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A platform for research: civil engineering, architecture and urbanism
Wetting and Drying Unsaturated Soil Moisture Diffusivity Parameters
Unsaturated soil moisture diffusivity parameter is important to variety of engineering applications, such as design and analysis of pavements, highway embankments and slopes, and shallow foundations. The unsaturated diffusivity coefficient controls transient moisture flow conditions within a soil in response to suctions or fluxes imposed at the boundaries of the soil mass. This research paper presents laboratory test results for wetting and drying unsaturated diffusion coefficients, and investigates the hysteresis effect between the wetting and drying processes on the measured parameters. Undisturbed soil specimens were obtained from a compacted highway embankment site in Oklahoma. Soil specimens were exposed to drying and wetting cycles, and the resulting wetting and drying coefficients were evaluated. The wetting diffusion coefficients were generally higher than the drying diffusion coefficients by factors between one and two.
Wetting and Drying Unsaturated Soil Moisture Diffusivity Parameters
Unsaturated soil moisture diffusivity parameter is important to variety of engineering applications, such as design and analysis of pavements, highway embankments and slopes, and shallow foundations. The unsaturated diffusivity coefficient controls transient moisture flow conditions within a soil in response to suctions or fluxes imposed at the boundaries of the soil mass. This research paper presents laboratory test results for wetting and drying unsaturated diffusion coefficients, and investigates the hysteresis effect between the wetting and drying processes on the measured parameters. Undisturbed soil specimens were obtained from a compacted highway embankment site in Oklahoma. Soil specimens were exposed to drying and wetting cycles, and the resulting wetting and drying coefficients were evaluated. The wetting diffusion coefficients were generally higher than the drying diffusion coefficients by factors between one and two.
Wetting and Drying Unsaturated Soil Moisture Diffusivity Parameters
Mabirizi, D. (author) / Bulut, R. (author)
GeoShanghai International Conference 2010 ; 2010 ; Shanghai, China
2010-05-14
Conference paper
Electronic Resource
English
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