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

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Investigations of Soil Classification Methods using Cone Test Results

콘시험결과를 활용한 토질분류법의 고찰

  • Kim, Dae-Kyu (Dept. of Civil Engineering, Sangmyung University)
  • 김대규 (상명대학교 건설시스템공학과)
  • Published : 2009.07.31
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Abstract

In this study, the method by Robertson which has been most commonly used for classifying soils, using piezocone test results, was compared with that by Schneider which was most recently proposed. Both methods were applied to the soils in Gyeonggi province and the classifying results were investigated. It has been found that the difference between the results according to the methods was not so large and Schneider's method showed slightly better results for clay region and vice versa. Such factors as large field database, normalized tip resistance, pore water pressure, and drain condition were found to need further research for more reliable soil classification.

본 연구에서는 피조콘관입시험 결과를 활용한 토질분류법 중 가장 일반적으로 사용되고 있는 Robertson 방법과 최근 발표된 최신 분류법인 Schneider 방법을 비교분석하였다. 이를 위하여 경기해안 지역의 연약지반을 대상으로 두 방법 및 통일분류법의 토질분류 결과를 고찰하였다. 연구결과, 두 방법에 의한 결과 차이는 크지 않았으나 전반적으로 Schneider 방법이 점토지역에서, Robertson 방법이 사질토에서 보다 정밀한 결과를 보였다. 보다 신뢰도 높은 토질분류를 위하여 콘 시험의 데이터베이스, 정규화된 콘저항치, 간극수압 및 배수조건에 대한 심층 연구가 필요하다.

Keywords

References

  1. B. J. Douglas and R. S. Olson, "Soil Classification using Electric Cone Penetrometer", Cone Penetration and Experience, ASCE, G. M. Norris and R. D. Holtz, ed. New York, pp. 209-227, 1981.
  2. R. G. Campanella and P. K. Robertson, "Current Status of the Piezocone Test", Invited Lectures, 1st Int. Conf. on Penetration Testing, Disney World, pp. 93-116, 1988
  3. P. K. Robertson, "Soil Classification using the Cone Penetration Test", Canadian Geotechnical J., pp. 151-158, Vol. 27, No. 8, 1990. https://doi.org/10.1139/t90-014
  4. P. K. Robertson, "Soil Classification using the Cone Penetration Test: Rply", Canadian Geotechnical J., pp. 176-178, Vol. 28, No. 1, 1991. https://doi.org/10.1139/t91-024
  5. J. A. Schneider, M. F. Randolph, P. W. Mayne, N. R. Ramsey, "Analysis of Factors Influencing Soil Classification Using Normalized Piezocone Tip Resistance and Pore Pressure Parameters", J. of Geotechnical and Geoenvironmental Engineering, pp. 1569-1586, November, 2008
  6. T. Lunne, P. K. Robertson, J. J. M. Powell, Cone Penetration Testing, Blackie Academic and Professional, 1997.
  7. P. W. Mayne, R. C. Bachus, "Profiling OCR in Clays by Piezocone," Penetration Testing, Balkema, Rotterdam, The Netherlands, pp. 857-864, 1988.
  8. K. A. Finke, P. W. Mayne, R. A. Klopp, "Piezocone Testing in Atlantic Piedmont Residuum", J. of Geotechnical and Geoenvironmental Engineering, pp. 48-54, Vol. 127, No. 1, 2001. https://doi.org/10.1061/(ASCE)1090-0241(2001)127:1(48)
  9. K. A. Finke, P. W. Mayne, "Closure to Piezocone Testing in Atlantic Piedmont Residuum", J. of Geotechnical and Geoenvironmental Engineering, pp. 443-446, Vol. 128, No. 5, 2002. https://doi.org/10.1061/(ASCE)1090-0241(2002)128:5(443)
  10. D.-K. Kim, W.-J. Lee, "A Study on Piezocone Test using a Calibration Chamber", J. of Korean Geotechnical Society, pp. 99-106, Vol 16, No. 3, June, 2000.
  11. H.-D. Lim, D.-K. Kim, W.-J. Lee, "Initial Excess Pore Water Pressure Induced by Cone Penetration in Normally Consolidated Clays", J. of Korean Geotechnical Society, pp. 151-161, Vol 19, No. 1, Feb., 2003.