MICROMECHANICS MODEL FOR CREEP OF ANISOTROPIC CLAY

Clays frequently possess a fabric with a preferred particle orientation and the creep properties of such clays are therefore anisotropic. A two-dimensional microstructural model to describe this creep response is developed. The model is based on a triangular cell of three particles sliding over each other at a rate predicted by rate-process theory. The anisotropic creep viscosity parameters are obtained by a statistical averaging procedure based on the probability density of the particle orientation distribution, as determined by x-ray diffraction. The resulting model is able to predict the directional differences in the creep rate and the stress dependence of creep in clays with anisotropic fabric.

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Filing Info

  • Accession Number: 00082831
  • Record Type: Publication
  • Report/Paper Numbers: ASCE #11138 Proc Paper
  • Files: TRIS
  • Created Date: Mar 26 1975 12:00AM