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

Korean Geotechnical Society (한국지반공학회)
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A Study on the Evaluation of Overconsolidation Ratio of Marine Clay by Flat DMT

DMT를 이용한 해성점토의 과압밀비 추정에 관한 연구

  • Jeong, Hyeok (Dept. of Civil Engineering, The University of Suwon) ;
  • Kim, Jong-Kook (Geo-Team., Institution of Korea Construction Quality Test&Analysis) ;
  • Chae, Young-Su (Dept. of Civil Engineering, The University of Suwon) ;
  • Yoon, Won-Sub (Dept. of Civil Engineering, The University of Suwon)
  • 정혁 (수원대학교 토목공학과) ;
  • 김종국 (한국건설품질시험원 지반공학센타) ;
  • 채영수 (수원대학교 토목공학과) ;
  • 윤원섭 (수원대학교 토목공학과)
  • Published : 2008.03.28
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Abstract

In this study, it enforced DMT test, CPTu test, laboratory consolidation test, because it estimated stress history of Gwangyang port marine clay. Through DMT test obtained Horizontal stress index($K_D$), predicted overconsolidation ratio by $K_D$. To compare empirical equation with laboratory consolidation test and CPTu test calculated OCR examined application. The result, Powell & Uglow(1988) method underestimated OCR value in comparison with Suggestion. Comparatively Byeon wi yong(2004) and Chang(1991) method seem to exactly predict in-situ stress states. Sugawara(1988) method of CPTu test seems to underestimate OCR.

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