Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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Critical State Parameters of a High Compressible Jeju Sand

압축성이 큰 제주해사의 한계상태정수

  • Lee, Moon-Joo (School of Civil, Environmental, and Architectural Engrg., Korea Univ.) ;
  • Hong, Sung-Jin (School of Civil, Environmental, and Architectural Engrg., Korea Univ.) ;
  • Choi, Young-Min (School of Civil, Environmental, and Architectural Engrg., Korea Univ.) ;
  • Kim, Min-Tae (School of Civil, Environmental, and Architectural Engrg., Korea Univ.) ;
  • Lee, Woo-Jin (School of Civil, Environmental, and Architectural Engrg., Korea Univ.)
  • 이문주 (고려대학교 건축.사회환경공학부) ;
  • 홍성진 (고려대학교 건축.사회환경공학부) ;
  • 최영민 (고려대학교 건축.사회환경공학부) ;
  • 김민태 (고려대학교 건축.사회환경공학부) ;
  • 이우진 (고려대학교 건축.사회환경공학부)
  • Published : 2009.09.25
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Abstract

This study conducted a series of drained triaxial test in order to determine the critical state parameters of a high compressible Jeju sand. Jeju sand is classified into mixed sand containing both siliceous and calcareous materials and has high extreme void ratios due to the angularity of grains and the intra-particle voids of hollow particles. It is observed that the behavior of Jeju sand is similar to that of general calcareous sand. The friction angle of Jeju sand at critical state gradually decreases with increasing the mean effective stress. Test result shows that the particle crushing resulted from stress during shear causes the reduction of void ratio at critical state.

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