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

Korean Geotechnical Society (한국지반공학회)
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Estimation of Deformation Modulus of Cemented Sand using CPT and DMT

CPT와 DMT를 이용한 고결모래의 변형계수 추정

  • Lee, Moon-Joo (Dept. of Civil, Environmental, and Architectural Engrg., Korea Univ.) ;
  • Choi, Sung-Kun (Dept. of Civil, Environmental, and Architectural Engrg., Korea Univ.) ;
  • Hong, Sung-Jin (Dept. of Civil, Environmental, and Architectural Engrg., Korea Univ.) ;
  • Lee, Woo-Jin (Dept. of Civil, Environmental, and Architectural Engrg., Korea Univ.)
  • 이문주 (고려대학교 건축.사회환경시스템공학과) ;
  • 최성근 (고려대학교 건축.사회환경시스템공학과) ;
  • 홍성진 (고려대학교 건축.사회환경시스템공학과) ;
  • 이우진 (고려대학교 건축.사회환경시스템공학과)
  • Published : 2008.10.10
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Abstract

The purpose of this study is to compare the cementation effect on cone resistance and DMT indices and to evaluate the deformation characteristic of cemented sand using cone resistance and dilatometer modulus. Specimens of various relative densities with three different cementation levels are prepared in a large calibration chamber under different vertical stress levels. Test result shows that the cone resistance and dilatometer modulus underestimate the deformation modulus of cemented sand, since in situ penetration tests such as CPT and DMT damage the cementation bonds during penetration. By regression analysis, the constrained modulus of cemented sand is related with the cone resistance and the dilatometer modulus.

Keywords