ANALYSIS OF PRESSUREMETER IN STRAIN-SOFTENING SOIL

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.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00781193
• 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

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 1-16
• Serial:
  • Norwegian Geotechnical Institute Publication
  • Issue Number: 108
  • Publisher: Norwegian Geotechnical Institute
  • ISSN: 0078-1193

Subject/Index Terms

• TRT Terms: Analysis; Deformation curve; Equations; Mechanical elasticity; Mechanical strain; Mixing; Plasticity; Pore water pressures; Pressure gages; Properties of materials; Saturated soils; Softening point; Soils; Strain hardening
• Uncontrolled Terms: Undrained conditions
• Old TRIS Terms: Elastic theory; Excess hydrostatic pressure; Plastic theory; Soil characteristics; Strains; Yield
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

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