Geomechanics and Engineering

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Effect of suction on volume change and shear behaviour of an overconsolidated unsaturated silty soil

  • Estabragh, A.R. (Assistant Professor in Geotechnical Engineering, Faculty of Soil and Water Engineering, University of Tehran) ;
  • Javadi, A.A. (Computational Geomechanics Group, College of Engineering, Mathematics and Physical Sciences, University of Exeter)
  • Received : 2011.04.27
  • Accepted : 2012.01.10
  • Published : 2012.03.25
⟨ Previous Next ⟩

Abstract

This paper presents the results of an experimental study on the effect of suction on compressibility and shear behaviour of unsaturated silty soil under various types of loading. A series of laboratory experiments were conducted in a double-walled triaxial cell on samples of a compacted silty soil. In the experiments the soil samples were subjected to isotropic consolidation followed by unloading and subsequent reloading under constant suction and prescribed overconsolidated ratio. The experimental results are presented in the context of an elasto-plastic model for unsaturated soil. The effects of suction on mechanical behaviour of unsaturated silty soil are presented and discussed. It is shown that increasing suction affects the shear behaviour of unsaturated soils, but there is a limit beyond which, further increase in suction will not result in any significant change in the behaviour.

Keywords

References

  1. Alonso, E.E., Gens, A. and Josa, A. (1987), "Special Proplems Soils, General Report", Proceedings of the 9th European Conference Soil Mechanics, Dublin, 1083-1146.
  2. Alonso, E.E., Gens, A. and Josa, A. (1990), "A constitutive model for partially saturated soils", Geotechnique, 40(3), 405-430. https://doi.org/10.1680/geot.1990.40.3.405
  3. Bishop, A.W. (1959), "The Principal of effective Stress", Tek, Ukebled.
  4. Bolzon, G., Schrefler, B.A. and Zienkiewicz, O.C. (1996), "Elastoplastic soil constitutive laws generalized to partially saturated states", Geotechnique, 46(2), 279-289. https://doi.org/10.1680/geot.1996.46.2.279
  5. Cui, Y.J. and Delage, P. (1996), "Yielding and plastic behaviour of an unsaturated compacted silt", Geotechnique, 46(2), 405-430.
  6. Escario, V. and Saez, J. (1986), "The shear strength of partially saturated soils", Geotechnique, 36, 453-456. https://doi.org/10.1680/geot.1986.36.3.453
  7. Datcheva, M. and Schanz, T. (2003), "Anisotropic bounding surface plasticity with rotational hardening for unsaturated friction material", Journal de Physique iv, 105, 305-312. https://doi.org/10.1051/jp4:20030201
  8. Estabragh, A.R., Javadi, A.A. and Boot, J.C. (2004), "Effect of compaction pressure on consolidation behaviour of unsaturated silty soil", Can. Geotech. J., 41(3), 540-550. https://doi.org/10.1139/t04-007
  9. Estabragh, A.R., Javadi, A.A. and Boot, J.C. (2000), "An experimental study of elastic volume change in unsaturated soils", Proc. Asian Conference on Unsaturated Soils, Singapore, 651-655.
  10. Fredlund, D.G. and Morgenstern, N.R. (1977), "Stress state variables for unsaturated soils", J. Geotech. Eng. - ASCE, 103, 447-466.
  11. Fredlund, D.G., Morgenstern, N.R. and Widger, R.A. (1978), "The shear strength of unsaturated soils", Can. Geotech. J., 15(3), 313-321. https://doi.org/10.1139/t78-029
  12. Fredlund, D.G., Rahardjo, H. and Gan, K.M. (1987), "Non linearity of strength envelope for unsaturated soils", Proceedings of th 6th International Conference on Expansive Soils, New Delhi, India, 1-4.
  13. Fredlund, D.G. and H. Rahardjo, (1993), "Soil mechanics for unsaturated soils", John Wiley & Sons: New York, USA.
  14. Gallipoli, D., Gens, A., Sharma, R.S. and Vaunat, J. (2003), "An elasto-plastic model for unsaturated soil incorporating the effect of suction and degree of saturation on mechanical behaviour", Geotechnique, 53(1), 123-135. https://doi.org/10.1680/geot.2003.53.1.123
  15. Gan, J.K.M., Fredlund, D.G. and Rahardjo, H. (1988), "Determination of shear strength parameter for unsaturated soil using direct shear test", Can. Geotech. J., 25(3), 500-510. https://doi.org/10.1139/t88-055
  16. Jenning, E.B. and J.B. Burland, (1962), "Limitation to the use of effective stress in partially saturated soils", Geotechnique, 2, 125-144.
  17. Jotisankasa, A., M. Coop, M. and A. Ridley, (2009), "The mechanical behaviour of an unsaturated compacted silty clay", Geotechnique, 59, 415-428. https://doi.org/10.1680/geot.2007.00060
  18. Karube, D. (1988), "New concept of effective stress in unsaturated soil and its proving test", Advanced Triaxial Testing of Soil And Rock, ASTM STP 977, 539-552.
  19. Khalili, N., Habte, M. and Valliappan, S. (2005), "A bounding surface plasticity model for cyclic analysis of sands", Int. J. Numerical Methods in Engineering, 63(14), 1939-1960. https://doi.org/10.1002/nme.1351
  20. Khalili, N. and Khabbaz, M.H. (1998), "A unique relationship for x for the determination of shear strength of unsaturated soils", Geotechnique, 48(5), 681-688. https://doi.org/10.1680/geot.1998.48.5.681
  21. Kohgo, Y., Nakano, M. and Miyazaki, T. (1993), "Verification of generalised elasto-plastic model for unsaturated silsm", Soil and Foundation, 33, 64-73. https://doi.org/10.3208/sandf1972.33.4_64
  22. Matyas, E.I. and Radhakrishna, H.S. (1968), "Volume change characteristics of partially saturated soils", Geotechnique, 18(4), 432-448. https://doi.org/10.1680/geot.1968.18.4.432
  23. Lu, N. and Likos, W.J. (2004), Unsaturated soil mechanics, John Wiley & Sons, Inc, Hoboken, NJ, USA.
  24. Lu, N. and Likos, W.J. (2006), "Suction stress characteristic curve for unsaturated soil", J. Geotech. Geoenviron. Eng., ASCE, 132(2), 131-142. https://doi.org/10.1061/(ASCE)1090-0241(2006)132:2(131)
  25. Rahardjo, H., O.B. Heng, O.B. and Choon, L.E. (2004), "Shear strength of a compacted residual soil from consolidate drained and constant water content triaxial tests", Can. Geotech. J., 41(3), 421-436. https://doi.org/10.1139/t03-093
  26. Russel, A.R. and Khalili, N. (2006), "A unified bounding surface plasticity model for unsaturated soil", Int. J. Numer. Anal. Method. Geomech., 30(3), 181-212. https://doi.org/10.1002/nag.475
  27. Sharma, R.S. (1998), "Mechanical behaviour of unsaturated highly expansive clays", PhD, thesis, University of Oxford, Oxford, UK.
  28. Sivakumar, V. (1993), "A critical state framework for unsaturated soils", PhD thesis, University of Sheffield, Sheffiel UK.
  29. Wheeler, S.J. and Sivakumar, V. (1995), "An elasto plastic critical state framework for unsaturated soil", Geotechnique, 45(1), 35-53. https://doi.org/10.1680/geot.1995.45.1.35
  30. Wheeler, S.J., Sharma, R.S. and Buissen, M.S.R. (2003), "Coupling of hydraulic hystersis and stress-strain behaviour in unsaturated soils", Geotechnique, 53(1), 41-54. https://doi.org/10.1680/geot.2003.53.1.41
  31. Vanapalli, S.K., Pufahl, D.E. and Fredlund, D.G. (1999), "Interpretation of the shear strength of unsaturated soils in undrained loading conditions", Proc. 52nd Canadian Geotechnical Conference, Regina, Sask. Canada, 643-650.
  32. Yang, C., Cui, Y.J., Pereiro, J.M. and Huang, M.S. (2008), "A constitutive model for unsaturated cemented soils under cyclic loading", Comput. Geotech., 35(6), 853-859. https://doi.org/10.1016/j.compgeo.2008.08.005

Cited by

  1. Influence of Suction History on Hydraulic and Stress-Strain Behavior of Unsaturated Soils vol.16, pp.6, 2016, https://doi.org/10.1061/(ASCE)GM.1943-5622.0000602
  2. Effect of Moisture Hysteresis on the Resilient Modulus of Lime-Treated Expansive Clay vol.45, pp.6, 2017, https://doi.org/10.1520/JTE20160225
  3. Unsaturated shear strength properties of a compacted expansive soil from Regina, Canada vol.1, pp.1, 2016, https://doi.org/10.1007/s41062-016-0047-2
  4. Prediction of unsaturated shear strength of expansive clays vol.170, pp.5, 2017, https://doi.org/10.1680/jgeen.16.00037
  5. Modeling Stress–Dilatancy Behavior of Compacted Silty Sand Under Suction-Controlled Axisymmetric Shearing vol.36, pp.6, 2018, https://doi.org/10.1007/s10706-018-0647-z
  6. Hydromechanical behavior of a natural swelling soil of Boumagueur region (east of Algeria) vol.17, pp.1, 2012, https://doi.org/10.12989/gae.2019.17.1.069
  7. LE analysis on unsaturated slope stability with introduction of nonlinearity of soil strength vol.19, pp.2, 2012, https://doi.org/10.12989/gae.2019.19.2.179
  8. Effect of Wetting Process with Presence of Matric Suction on Unsaturated Gypseous Sand Soils vol.54, pp.5, 2012, https://doi.org/10.35741/issn.0258-2724.54.5.3
  9. Shear infiltration and constant water content tests on unsaturated soils vol.19, pp.5, 2012, https://doi.org/10.12989/gae.2019.19.5.435
  10. Compression and Shear Strength Characteristics of Unsaturated Intact Loess in True Triaxial Tests vol.43, pp.6, 2012, https://doi.org/10.1520/gtj20190282
  11. Experimental Study on the Response of Unsaturated Silt Due to Change in Drainage Conditions During the Triaxial Test Process vol.38, pp.2, 2012, https://doi.org/10.1007/s10706-019-01125-3
  12. Calculation model for the shear strength of unsaturated soil under nonlinear strength theory vol.21, pp.3, 2012, https://doi.org/10.12989/gae.2020.21.3.247
  13. Hydro-mechanical behavior of compacted silt over a wide suction range vol.22, pp.3, 2012, https://doi.org/10.12989/gae.2020.22.3.237
  14. Advanced Triaxial Tests on Partially Saturated Soils Under Unconfined Conditions vol.18, pp.10, 2012, https://doi.org/10.1007/s40999-020-00530-7