PREDICTING THE SHEAR STRENGTH FUNCTION FOR UNSATURATED SOILS USING THE SOIL-WATER CHARACTERISTIC CURVE

The shear strength of unsaturated soils can be computed using the soil-water characteristic curve and the saturated shear strength parameters of the soil. Closed-form solutions for the prediction of unsaturated shear strength are developed in this paper using simple soil-water characteristic curve equations available in the literature. These closed-form solutions are not suitable for all types of soils and large ranges of suction. A general form for the shear strength equation of unsaturated soils using a rigorous soil-water characteristic curve equation is also developed in this paper. The proposed models make use of the soil-water characteristic curve and the saturated shear strength parameters to predict the variation of shear strength with respect to suction. (A) For the covering abstract see IRRD 881647.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 63-9

Subject/Index Terms

Filing Info

  • Accession Number: 00729069
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 90-5410-583-6
  • Files: ITRD
  • Created Date: Dec 12 1996 12:00AM