한국산학기술학회논문지 (Journal of the Korea Academia-Industrial cooperation Society)

  • 제11권5호
  • /
  • Pages.1814-1819
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  • 2010
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  • 1975-4701(pISSN)
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  • 2288-4688(eISSN)
한국산학기술학회 (The Korea Academia-Industrial cooperation Society)
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정규화 콘팁저항치와 OCR의 관계상수에 관한 연구

Study on the Relation Constant between OCR and Normalized Net Cone Tip Resistance

  • 김대규 (상명대학교 건설시스템공학과)
  • Kim, Dae-Kyu (Dept. of Civil Engineering, Sangmyung University)
  • 투고 : 2010.03.09
  • 심사 : 2010.05.13
  • 발행 : 2010.05.31
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초록

본 연구에서는 현재 OCR(과압밀비) 값 결정을 위하여 실용적으로 많이 활용되고 있는 경험적 방법인 정규화 콘팁저항치과 과압밀비의 관계상수법에 대하여 분석하였다. 이를 위하여 창원 북면 및 인천 서북면 지역의 연약점 토지반에 대하여 관계상수를 산정하고 고찰하였다. 연구결과, 관계상수 값은 창원북면의 경우 0.28~0.33, 인천 서북면의 경우 0.49~0.6으로, 해외의 기존 연구결과 보다 최대 90% 크게 비안전측으로 산정되어 향후 콘팁저항치와 과압밀비의 관계상수법 사용에 주의가 필요하다 하겠다.

The relation constant method between OCR and normalized net cone tip resistance has been widely used to estimate OCR value in practice. In this study, the method was analyzed for the soft soils in the Bukmyun area in Changwon city and the northwestern area in Incheon city. The relation constant value was estimated in the range of 0.28~0.33 for the Bukmyun area in Changwon city and 0.49~0.6 for the northwestern area in Incheon city. The value was max. 90% larger than it from the foreign previous studies. This is not the conservative result so the previous methods should be used with great caution of determining the constant value.

키워드

참고문헌

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  2. M. Y. Abu-Farsakh, "Possible Evaluation of Overconsolidatio Ratio of Clayey Soils from Piezocone Penetration Tests", GSP 162 Problematic Soils and Rocks and In Situ Chracterization, ASCE, 2007.
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  8. D. Kim, "Interpretation of Empirical Cone Factors for Determining Undrained Strength," J. of Industry-Academy, Vol. 10, No. 11, pp.3296-3302, 2009.