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

정규화 콘팁저항치와 OCR의 관계상수에 관한 연구

  • Kim, Dae-Kyu (Dept. of Civil Engineering, Sangmyung University)
  • 김대규 (상명대학교 건설시스템공학과)
  • Received : 2010.03.09
  • Accepted : 2010.05.13
  • Published : 2010.05.31


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.


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