The Upper Bound Calculation of Passive Earth Pressure Based on Shear Strength Theory of Unsaturated Soil

Based on the shear strength of unsaturated soil, the passive earth pressure of unsaturated soils is studied by means of the kinematical approach of limit analysis theory, in which not only the saturated shear strength parameters φ’, c’ and (ua-uw), but also the soil-water characteristic curve and the engineering practice are analyzed synthetically. The result of upper bound method for passive earth pressure is obtained via the sequential quadratic programming. The numerical results show that the existing of soil suction and the distribution mode of soil suction exert a significant effect on the passive earth pressure. Meanwhile, if the yield criterion of unsaturated soils turns into the yield criterion of saturated soils, then the solutions presented here ameliorate appreciably with available predictions.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 151-157
  • Monograph Title: Slope Stability, Retaining Walls, and Foundations: Selected Papers From the 2009 GeoHunan International Conference

Subject/Index Terms

Filing Info

  • Accession Number: 01142193
  • Record Type: Publication
  • ISBN: 9780784410493
  • Files: TRIS
  • Created Date: Oct 15 2009 3:10PM