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

Korean Geotechnical Society (한국지반공학회)
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Estimation of compressibility for Busan clay by CPT

CPT를 이용한 부산점토의 압축특성에 관한 연구

  • Hong, Sung-Jin (School of Civil, Environmental and Architectural Engrg., Korea Univ.) ;
  • Lee, Moon-Joo (School of Civil, Environmental and Architectural Engrg., Korea Univ.) ;
  • Shim, Seong-Hyeon (Civil ENG Team, Samsung Corporation) ;
  • Lee, Woo-Jin (School of Civil, Environmental and Architectural Engrg., Korea Univ.)
  • 홍성진 (고려대학교 건축.사회환경공학과) ;
  • 이문주 (고려대학교 건축.사회환경공학과) ;
  • 심성현 (삼성물산 건설부문) ;
  • 이우진 (고려대학교 사회환경시스템공학과)
  • Published : 2009.03.27
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Abstract

The constrained modulus, representative property to evaluate compressibility of soil, is needed to estimate the settlement of ground structure. A series of lab and field cone penetration tests for clayey soil of Busan new-port and Noksan industrial area were conducted to evaluate the estimation method of constrained modulus. Since CPT generates large deformation of ground, it is difficult to correlate the cone resistance with the constrained modulus. Therefore, appropriate correlation between them is essential to estimate the constrained modulus based on CPT results. The test results show that the ratio of the constrained modulus to the cone resistance is inversely proportional with plasticity index. Based on this result, the estimation method of constrained modulus for Busan clay is suggested.

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