Journal of the Korean Society of Environmental Restoration Technology (한국환경복원기술학회지)

The Korea Society of Environmental Restoration Technology (한국환경복원기술학회)
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Characteristics of Shear Strength for an Unsaturated Soil with the Matric Suction

흡인력에 따른 불포화토의 전단강도 특성

  • Song, Chang-Seob (Dept. of Rural Engineering, Chungbuk National University) ;
  • Choi, Dook-Ho (Dept. of Rural Engineering, Graduate School, Chungbuk National University)
  • 송창섭 (충북대학교 농업생명환경대학 지역건설공학과) ;
  • 최득호 (충북대학교 대학원)
  • Received : 2006.12.29
  • Accepted : 2007.02.28
  • Published : 2007.02.28
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Abstract

In order to analyse the strength problems for an unsaturated soil, it is required to examine closely the characteristics of the parameters of shear strength which was changed with the metric suction and void ratio. To this ends, a triaxial compression 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 soil and was controled the void ratio with the different compaction ratio. And the test was performed by using the modified apparatus of the triaxial compression tester. The range of matric suction was 0-90 kPa.The measured results for the deviator stress and parameters of shear strength were analysed with the void ratio and the compaction ratio, and they were examined closely the characteristics of the strength for an unsaturated soil.

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