Basic concepts of the theories of elasticity and platicity are reviewed, and classical plasticity formulation is extended to include the analysis of strain-softening behavior. A general effective stress-strain-strength model, based on the work by Roscoe, et al. is described, but attention isfocussed on the undrained analysis which constitutes a special part of the more general model. Single mathematical expressions for the yield functions are suggested such that closed-form solutions for stresses, strains and excess pore-water pressures around the pressuremeter may be determined. Detailed comparisons are made between the results from strain-hardening and strain- softening behavior. The proposed theory makes it possible to backfigure basic soil stress-strain and strength properties from strain-controlled pressuremeter tests. Governing equations are presented and the numerical illustrated. The general effective stress-strain-strength model is detailed, and the analysis of excess pore pressures around the pressuremeter is discussed.

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  • Supplemental Notes:
    • Reprinted From Journal of the Geotechnical Engineering Division, ASCE, Vol. 101, No. GT8, Proc. Paper 11488, August 1976.
  • Corporate Authors:

    Norwegian Geotechnical Institute

    P.O. Box 40 Tasen
    Oslo 8,   Norway 
  • Authors:
    • PREVOST, J H
    • Hoeg, K
  • Publication Date: 1975

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Filing Info

  • Accession Number: 00132910
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 5 1976 12:00AM