한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제62권4호
  • /
  • Pages.45-51
  • /
  • 2020
  • /
  • 1738-3692(pISSN)
  • /
  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
권호 표지
DOI QR코드

DOI QR Code

압밀비배수 삼축압축실험을 이용한 지반의 포아송비 예측

Poisson's Ratio Prediction of Soil Using the Consolidation Undrained Triaxial Compression Test

  • Lim, Seongyoon (Rural Development Administration, National Institute of Agricultural Sciences) ;
  • Yu, Seokchoel (Rural Development Administration, National Institute of Agricultural Sciences) ;
  • Kim, Yuyong (Rural Development Administration, National Institute of Agricultural Sciences) ;
  • Kim, Myeonghwan (Geo Mechanics Technology Group)
  • 투고 : 2020.06.25
  • 심사 : 2020.07.10
  • 발행 : 2020.07.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The poisson's ratio was obtained from the effective vertical stress and horizontal stress of consolidation-undrained test. It was analyzed void ratio verse poisson's ratio. At the result, the effective friction angle was increase with relative density increased, was decreased the poisson's ratio. The empirical equation of void ratio and poisson's ratio was showed very high correlation r2=0.846. The empirical equation was showed that the smaller the void ratio in the fine grained soil than granular soil. In the case of 0.85 times the correlation analysis equation of granular and fine grained soil, the experimental results were shown very similarly. In especially, the poisson's ratio prediction results was shown within 5% of the error range, was revalidation 0.85 times the correlation analysis equation using the void ratio. In this study, correlation analysis equation of the granular and fine grained soil was more reliability of the poisson's ratio prediction results apply to the void ratio than dry unit weight.

키워드

참고문헌

  1. ASTM D 4767-95. Standard Test Method for Consolidated Undrained Triaxial Compression Test for Cohesive Soils. ASTM.
  2. Burland, J. B., 1989. Ninth Laurits Bjerrum Memorial Lecture: small is beautiful - the stiffness of soils at small strains. Canadian Geotechnical Journal 26(4): 52-65. https://doi.org/10.1139/t89-064
  3. Byun, Y. H., S. H. Cho, H. K. Yoon, Y. W. Choo, D. S. Kim, and J. S. Lee, 2012. Void ratio evaluation of unsaturated soils by compressional and shear waves. Journal of The Korean Geotechnical Society 28(12): 41-51. doi:10.7843/kgs.2012.28.12.41.
  4. Jardine, R. J., D. M. Potts, A. B. Fourie, and B. Burland, 1986. Studies of the influence of non-linear stress-strain characteristics in soil-structure interaction. Geotechnique 36(3): 377-396. doi:10.1680/geot.1986.36.3.377.
  5. Jaky, J., 1948. Pressure in silos. In Proceedings of the 2nd International Conference on Soil Mechanics and Foundation Engineering, 1: 103-107.
  6. Ko, D. H., I. H. Lee, J. S. Kim, and D. S. Kim, 2002. Development of the small-strain triaxial testing equipment and application. Journal of the Korean Society of Civil Engineers C 22(3C): 219-229 (in Korean).
  7. KS F 2302, 2017. Standard Test Method for Particle Size Distribution of Soils. KRISS, Korean (in Korean).
  8. KS F 2312, 2016. Standard Test Method for Soil Compaction. KRISS, Korean (in Korean).
  9. Kumar, J., and B. Madhusudhan, 2010. Effect of relative density and confining pressure on Poisson ratio from bender and extender elements tests. Geotechnique 60(7): 561-567. doi:10.1680/geot.9.T.003.
  10. Lo Presti, D.C.F., S. Shibuya, and G. J. Rix, 1999. Innovation in Soil Testing, ISSMGE, Torino, pp. 158-207.
  11. Yoo, J. K., and D. H. Park, 2014. Evaluation of characteristics of shear strength and Poisso' ratio through triaxial and bender element tests. Journal of the Korean Geotechnical Society 30(5): 67-75 (in Korean). doi:10.7843/kgs.2014.30.5.67.
  12. Yoon, C. M., 2009. A study on the Poisson's ratio of domestic sands according to the various conditions. Master's thesis. National University of Changwon (in Korean).