한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제47권4호
  • /
  • Pages.35-41
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  • 2005
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  • 1738-3692(pISSN)
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  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
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불포화토의 투수특성

Characteristics of Permeability for an Unsaturated Soil

  • 발행 : 2005.07.01
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초록

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 flute (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.

키워드

참고문헌

  1. Daniel D. E. 1983, Permeability Test for Unsaturated Soil. Geotech. Testing J. (ASTM). 6(2): 81-86 https://doi.org/10.1520/GTJ10832J
  2. Fredlund. D. G. and H. Rahardjo., 1993, Soil Mechanics for Unsaturated Soils, New York: John Wiley and Sons, Inc
  3. Ingersoll J. E., 1981, Method for Coincidentally Determining Soil Hydraulic Conductivity and Moisture Retention Characteristics. Special Report 81-2, U. S. Army Cold Regions Res. and Eng. Lab., Hanover, NH
  4. Klute. A, 1965, Laboratory Measurement of Hydraulic Conductivity of Unsaturated Soil, Amer. Soc. of Agronomy, 253-261
  5. Klute. A., 1972, The Determination of The Hydraulic Conductivity and Diffusivity of Unsaturated Soils, Colorado State University and USDA-ARS-SWCRD, pp. 264-276
  6. Klute A. 1972, The Determination of the Hydraulic Conductivity and Diffusivity of Unsaturated Soils. Soil Sci. 113 (1): 264-276 https://doi.org/10.1097/00010694-197204000-00006
  7. Hillell D. 1982, Introduction to Soil Physics. New York. Academic, pp. 364
  8. Song, C. S. and M. H. Kim. 2003, Experimental Study for Soil-Water Characteristic Curves of Unsaturated Soil. Journal of the Korean Society of Agricultural Engineers 45 (6): 153-161. (in Korean)

피인용 문헌

  1. Thresholds of Rainfall Duration and Intensity for Predicting Abrupt Landslide Occurrence vol.56, pp.4, 2014, https://doi.org/10.5389/KSAE.2014.56.4.053