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

Korean Geotechnical Society (한국지반공학회)
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Development of Alternative Interpolation method of CPT Data using Fractal Theory

플랙탈 이론을 활용한 콘관입시험 결과의 새로운 보간법 개발

  • Yu, Chan (Dept. of Agri Eng, Gyeongsang Nat'l Univ.) ;
  • Jung, Sung-Mo (Geotechnical Department, Manyoung Construction Eng. Consultant.) ;
  • Jung, Kyoung-Sik (Geotechnical Department, S-Tech. Consulting Group)
  • 유찬 (경상대학교 농공학과) ;
  • 정성모 ((주)만영엔지니어링 지반사업부) ;
  • 정경식 (에스텍컨설팅그룹 지반사업부)
  • Published : 2006.03.24
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Abstract

In this study, R/S analysis which was proposed by Mandelbrot & Wallis(1969) was applied to evaluate the presence of the fractal property in the cone tip resistance of in-situ CPT data. Hurst exponents(H) were evaluated in the range of $0.660\sim0.990$ and the average was 0.875. It was confirmed that a cone tip resistance data had the characteristic of fractals and it was expected that cone tip resistance data sets are well approximated by a fBm process with an Hurst exponent near 0.875. It was also observed that the boundary between layers were obviously identified as a result of R/S analysis and it will be usage in practices.

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