Advertisement

Size Effect in the Cracking of Drying Soil

  • Pere C. Prat
  • Alberto Ledesma
  • M. R. Lakshmikantha

Abstract

Cracking in soils due to water loss is a problem not much studied from a mechanical point of view, despite its environmental implications. For instance, if a clayey soil is used as an impervious barrier in open waste sites, an intense drought may origin cracks and therefore preferential flow paths for polluted water. Cracks produced by environmental agents also reduce the bearing capacity of the soil and increases its propensity to erosion. Previous works have studied the problem either from a Fracture Mechanics perspective (Vallejo [1], Prat et al. [2], Ávila [3], Harison et al. [4], [5], Hallet and Newson [6]), analysing the conditions for crack propagation, or from a classical Soil Mechanics approach (Kodikara et al. [7], Abu-Hejleh and Znidarcic [8], Konrad and Ayad [9], Morris et al. [10], Lloret et al. [11], using the effective stress principle. In this case it has been observed that cracks initiate when soil is still close to saturation.

Keywords

Bearing Capacity Crack Width Unsaturated Soil Clayey Soil Mechanical Point 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Vallejo, L.E. In Fracture Mechanics Applied to Geotechnical Engineering, edited by ASCE, 1994, 1–20.Google Scholar
  2. 2.
    Prat, P.C., Ledesma, A. and Cabeza, L. In 8th Int. Conf. on Numerical Models in Geomechanics, edited by G. Pande and S. Pietruszczak, Swets & Zielinger, 2002, 705–711Google Scholar
  3. 3.
    Avila, G. Estudio de la retraccion y el agrietamiento de arcillas. Aplicación a la arcilla de Bogota, Ph.D. Thesis, Dept. of Geotech. Engng. and Geosciences, UPC, Barcelona, 2004.Google Scholar
  4. 4.
    Harison, J.A., Hardin, B. and Mahboub, K. J. of Geotech. Engng., vol. 120, 872–891, 1994.CrossRefGoogle Scholar
  5. 5.
    Harison, J.A. and Hardin, B. Int. J. Num. Anal. Meth. in Geomech., vol. 18, 467–484, 1994.CrossRefGoogle Scholar
  6. 6.
    Hallett, P.D. and Newson, T. European Journal of Soil Science, vol. 56, 31–38, 2005.CrossRefGoogle Scholar
  7. 7.
    Kodikara, J., Barbour, S.L. and Fredlund, D.G. Canadian Geotechnical Journal, vol. 35, 1112–1114, 1998.CrossRefGoogle Scholar
  8. 8.
    Abu-Hejleh, A.N. and Znidarcic, D. J. of Geotech. Engng., vol. 121, 493–502, 1995.CrossRefGoogle Scholar
  9. 9.
    Konrad, J.-M. and Ayad, R. Canadian Geotechnical Journal, vol. 34, 477–488, 1997.CrossRefGoogle Scholar
  10. 10.
    Morris, P.H., Graham, J. and Williams, D.J. Canadian Geotechnical Journal, vol. 29, 263–277, 1991.CrossRefGoogle Scholar
  11. 11.
    Lloret, A., et al. In 2 nd Int. Conf. on Unsaturated Soils. International Academic Publishers, 1998, 497–502.Google Scholar
  12. 12.
    Rodriguez, R.L., Estudio experimental de flujo y transporte de cromo, níquel y manganeso en residuos de la zona minera de Moa (Cuba): influencia del comportamiento hidro-mecánico, Ph.D. Thesis, Dept. of Geotech. Engng. and Geosciences, UPC, Barcelona, 2002.Google Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  • Pere C. Prat
  • Alberto Ledesma
  • M. R. Lakshmikantha

There are no affiliations available

Personalised recommendations