DOI QR코드

DOI QR Code

A Study on Cone Factors for Northeastern Part of Shiwha Area II:Reliability and Soil Properties

시화지구 북동지역에서의 콘 계수 연구 II:신뢰도 및 토질정수

  • Kim, Dae-Kyu (Dept. of Civil Engineering, Sangmyung University)
  • 김대규 (상명대학교 건설시스템공학과)
  • Received : 2011.10.26
  • Accepted : 2011.12.13
  • Published : 2011.12.31

Abstract

In this study, the values of the four kinds of cone factors($N_{kt}$, $N_{ke}$, $N_{{\Delta}u}$, and recently proposed $N_e$) and the soil properties, for the northeastern part of Shiwha area, were investigated. The measured and calculated undrained strengths, which have been obtained from the various experimental data, were compared with each other, and their relationship with the plastic index was also studied. The strength from the $N_{{\Delta}u}$ method was unexpectedly not reasonable and the higher values of cone factors were observed with the larger plastic index.

Keywords

Plastic index;Undrained strength;Cone factor;Piezocone

References

  1. R. G. Campanella, P. K. Robertson, D. G. Gillespie, J. Greig, "Recent Developements in insitu Testing of Soils," Pro. 11th Int. Conf. on Soil Mechanics and Foundation Engineering, Sanfrancisco, pp. 849-854, Vol. 2, 1985.
  2. S. F. Su, H. J. Liao, "Influence of Strength Anisotropy on Piezocone Resistance in Clay," J. of Geotechnical and Geoenvironmental Engineering, pp. 166-173, Vol. 128, No. 2, Feb., 2002. https://doi.org/10.1061/(ASCE)1090-0241(2002)128:2(166)
  3. C. Kim, S. Kim, J. Lee,, "Estimation of Undrained Shear Strength for Clays using Effective Cone Factor," J. of Korean Society of Geotechnical Engineers, pp. 133-141, Vol. 24, No. 11, 2008.
  4. D. Kim, "Interpretation of Empirical Cone Factors for Determining Undrained Strength," J. of Korea Academia-Industrial Cooperation Society, pp. 3296-3301, Vol. 10, No. 11, November, 2009. https://doi.org/10.5762/KAIS.2009.10.11.3296
  5. D. Kim, "A Study on Cone Factors for Northeastern Part of Shiwaha Area I: Evaluation and Pore Pressure Parameter," J. of Korea Academia-Industrial Cooperation Society, in press.
  6. T. Lunne, H. P. Chrisoffersen, T. I. Tjelta, "Engineering Use of Piezocone Data in North Sea Clays," Pro. 11th Int. Conf. on Soil Mechanics and Foundation Engineering, Sanfrancisco, pp. 907-912, Vol. 2, 1985.
  7. T. Lunne, P. K. Robertson, J. J. M. Powell, Cone Penetration Testing, Blackie Academic and Professional, 1997.