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Curve Fittig에 의한 Terzaghi의 압밀계수 산정방법 연구

The Study on Determination of the Coefficient of Terzaghi's Consolidation by Curve Fitting

  • 김찬식 (공주대학교 산업과학대학원 농공학전공) ;
  • 임성훈 (공주대학교 산업과학대학 지역건설공학전공)
  • 투고 : 2013.01.31
  • 심사 : 2014.01.17
  • 발행 : 2014.01.31

초록

It has been known that Terzaghi's consolidation theory is not well consistent with the consolidation phenomenon on the soft clay ground, but this theory has still been adopted normally in practice because there is no method for estimating the consolidation settlement and rate easier than Terzaghi's theory. It is impossible to map whole part of consolidation settlement vs time curve to the curve of Terzaghi'z average degree of consolidation. If the primary consolidation and the secondary compression are happened same time, it would be useless of trying to find the end of primary consolidation, but it is needed for using Terzaghi's theory that the end of consolidation is determined to the time of beginning consistency between the final settlement analyzed with curve fitting and the experimented consolidation settlement.

키워드

참고문헌

  1. Brand, E. W., and R. P. Brenner, 1981. Soft Clay Engineering, Elsevier.
  2. Cour, F. R., 1971. Inflection point method for computing Cv. Journal of the Soil Mechanics and Foundations Division, ASCE 97(SM5): 827-831.
  3. Das, B. M., 2008. Advanced Soil Mechanics, 3rd edition, Taylor & Francis.
  4. Eam, S. H., 1999. Final settlement prediction methods of embankment on soft clay by back analysis. The thesis for the degree of master of agriculture, Graduate school of Chungnam National University.
  5. Jaeger, J. C., 1959. The analysis of aquifer test data on thermal conductivity measurements which use a line source. Journal of Geophysical Research 64(5): 561-564. https://doi.org/10.1029/JZ064i005p00561
  6. Kang, M. S., 2008. The estimation of settlement caused by shear strain from the difference between consolidation theory and field measured settlement. The thesis for the degree of master of engineering, Graduate school of Kongju National University.
  7. Kang, M. S., S. O. Jeon, and S. H. Eam, 2009. Estimation of settlement caused by lateral displacement by means of the differences of settlements from consolidation theory and field measurement. Journal of the Korean Society of Agricultural Engineers 51(5): 59-68. https://doi.org/10.5389/KSAE.2009.51.5.059
  8. Korea Land Corporation, 1999. The study on consolidation properties of soft ground.
  9. Korean Geotechnical Society, 2009. The commentary on the design code for foundation of structure. The Ministriy of Land Transport and Maritime Affairs.
  10. Korean Standard Association, 2002. KS F 2316: 2002 Test method for one-dimensional consolidation properties of soils using incremental loading.
  11. Kwak, C. M., Y. H. Jung, C. Y. Kim, and C. K. Chung, 2005. A new method for estimating the coefficient of consolidation in various stress conditions. Journal of the Korean Geotechnical Society 21(5): 25-32.
  12. Leonards, G. A., 1962. Engineering properties of soils, Ch. 2. in Foundation Engineering, ed. G. A. Leonards, 169-171. McGrow-Hill.
  13. Leonards, F. and M. Altschaeffle, 1964. Compressibility of clay. Journal of the soil mechanics and foundations division, ASCE 90(SM5): 133-155.
  14. Mesri, G. 1973. Coefficient of secondary compression. Journal of the soil mechanics and foundations division ASCE 99(SM1): 123-137.
  15. Mesri, G., K. Adachi, and C. R. Ullrich, 1976. Porepressure response in rock to undrained change in all-round stress. Geotechnique, ICE 26(2): 317-330. https://doi.org/10.1680/geot.1976.26.2.317
  16. Mesri, G., T. D. Stark, M. A. Ajlouni, and C. S. Chen, 1997. Secondary compression of peat with or without surcharging. Journal of the geotechnical and Geoenvironmental Engineering ASCE 123(5): 411-421. https://doi.org/10.1061/(ASCE)1090-0241(1997)123:5(411)
  17. Olson, R. E., 1998. The thirty-first Terzaghi lecture settlement of embankments on soft clays. Journal of Geotechnical and Geoenvironmental Engineering. ASCE 124(8): 659-669. https://doi.org/10.1061/(ASCE)1090-0241(1998)124:8(659)
  18. Parkin, A. K., 1978. Coefficient of consolidation by the velocity method. Geotechnique 28(4): 472-474. https://doi.org/10.1680/geot.1978.28.4.472
  19. Parkin, A. K., 1981. Consolidation analysis by the velocity method. Proceedings of the tenth international conference on soil mechanics and foundations engineering, stockholm 1: 723-726.
  20. Raju, P. S. R., N. S. Pandian, and T. S. Nagaraj, 1995. Analysis and estimation of coefficient of consolidation. Geotechnical Testing Journal 18(2): 252-258. https://doi.org/10.1520/GTJ10325J
  21. Robinson, R. G. and M. M. Allam, 1996. Determination of coefficient of consolidation from early stage of log t plot. Geotechnical Testing Journal 19(3): 316-320. https://doi.org/10.1520/GTJ10358J
  22. Samarasinghe, A. M., Y. H. Huang, and V. P. Drnevich, 1982. Permeability and consolidation of normally consolidated soils. Journal of the Geotechnical Engineering Division, ASCE 108(GT6): 835-850.
  23. Scott, R. F., 1961. New method of consolidation coefficient evaluation. Journal of soil mechanics and foundations division, ASCE 87(SM1): 29-39.
  24. Sivaram, B., and P.K. Swamee, 1977. A computational method for consolidation coefficient. Soils and Foundations 17(2): 48-52. https://doi.org/10.3208/sandf1972.17.2_48
  25. Sridharan, A. and A. Sreepada Rao, 1981. Rectangular hyperbola fitting method for one dimensional consolidation. Geotechnical Testing Journal 4(4): 161-168. https://doi.org/10.1520/GTJ10785J
  26. Sridharan, A. and K. Prakash, 1993. ${\delta}-t/{\delta}$ method for the determination of coefficient of consolidation. Geotechnical Testing Journal 16(1): 131-134. https://doi.org/10.1520/GTJ10276J
  27. Sridharan, A., and K. Prakash, 1985. Improved rectangular hyperbola method for the determination of coefficient of consolidation. Geotechnical Testing Journal, 3(1): 37-40.
  28. Sridharan, A., N. S. Murthy, and K. Prakash, 1987. Rectangular hyperbola method of consolidation analysis. Geotechnique 37(3): 355-368. https://doi.org/10.1680/geot.1987.37.3.355
  29. Taylor, D. W., 1948. Fundamentals of Soil Mechanics, Wiley, New York.
  30. Terzaghi, K., 1943. Theoretical Soil Mechanics, John Wiley & Sons.