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In order to analyse the flow problems for an unsaturated soil, it is required to examine closely the characteristics of the coefficient of permeability which is changing with the matric suction. To this ends, a permeability test was conducted on the three samples;granular soil, cohesive soil and silty soil.The specimen was made by pressing the static pressure on the mold filled with soil and the void ratio was controled with the different compaction ratio. And the test was performed by using the modified apparatus of the steady state method which was proposed by Klute (1972). The range of matric suction was 0-90 kPa.The measured results for the coefficients of permeability were analysed with the void ratio and the compaction ratio, and it was examined closely the characteristics of the permeability for an unsaturated soil.
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참고문헌 (8)
참고문헌 신청
/ / Permeability Test for Unsaturated Soil. Geotech. Testing J. : 81 ~ 6 86
/ / The Determination of the Hydraulic Conductivity and Diffusivity of Unsaturated Soils. Soil Sci. 113 : 264 ~ 276
/ 1965laboratorymeasurementofhydraulicconductivityofunsaturatedsoil / Amer. Soc. of Agronomy
/ 1972thedeterminationofthehydraulicconductivityanddiffusivityofunsaturatedsoils / Colorado State University and USDA-ARS-SWCRD
/ 1981 / Method for Coincidentally Determining Soil Hydraulic Conductivity and Moisture Retention Characteristics. Special Report 81-2 U. S. Army Cold Regions Res. and Eng. L
/ / The Determination of the Hydraulic Conductivity and Diffusivity of Unsaturated Soils. Soil Sci. 113 : 264 ~ 276
/ 1965laboratorymeasurementofhydraulicconductivityofunsaturatedsoil / Amer. Soc. of Agronomy
/ 1972thedeterminationofthehydraulicconductivityanddiffusivityofunsaturatedsoils / Colorado State University and USDA-ARS-SWCRD
/ 1981 / Method for Coincidentally Determining Soil Hydraulic Conductivity and Moisture Retention Characteristics. Special Report 81-2 U. S. Army Cold Regions Res. and Eng. L
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