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

Korean Geotechnical Society (한국지반공학회)
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Evaluation of Cone resistance of A Jeju Sand and Its Cementation Possibility

제주해사의 콘선단저항 및 고결가능성 평가

  • Lee, Moon-Joo (School of Civil, Environmental, and Architectural Engrg., Korea Univ.) ;
  • Kim, Jae-Jeong (School of Civil, Environmental, and Architectural Engrg., Korea Univ.) ;
  • Shim, Jai-Beom (Samsung C&T Corporation) ;
  • Lim, Chai-Geun (RGEO Engineering & Construction) ;
  • Lee, Woo-Jin (School of Civil, Environmental, and Architectural Engrg., Korea Univ.)
  • 이문주 (고려대학교 건축.사회환경공학부) ;
  • 김재정 (고려대학교 건축.사회환경공학부) ;
  • 심재범 (삼성물산 토목사업본부 토목ENG팀) ;
  • 임채근 (알지오이엔씨) ;
  • 이우진 (고려대학교 건축.사회환경공학부)
  • Published : 2009.09.25
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Abstract

In this study, a Jeju sand, which contains both siliceous and calcareous materials, was sampled from a beach in Jeju Island. It is observed that the Jeju sand has high extreme void ratios due to the angularity of grains and the intra-particle voids of hollow particles. From cone penetration test using calibration chamber system, it is found that the cone tip resistance($q_c$)-relative density(Dr)-vertical effective stress(${\sigma_v}'$) relation of Jeju sand almost matches to that of high compressible quartz sand. However, this correlation overestimates the relative density of a coastal sediments in Jeju Island maybe due to the cementation effect of this area. From analysis of the results of cone penetration and SPS tests at a coastal area in Jeju Island, it seems reasonable to assume that the coast of Jeju Island is a natural cemented sediments.

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