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Introduction to Critical State Soil Mechanics

22/01/2018 - 24/01/2018

Course content

  • Stresses and strains in soil. Stress invariants and strain invariants.
  • Stress paths.
  • Compression and shear behaviour of soils.
  • The Roscoe and Hvorslev surfaces.
  • The Critical State concept.
  • The behaviour of sands and development of a flow rule.
  • Introduction to plasticity theory, the Cam Clay model.
  • Continuum mechanics, constitutive models, compatibility of stresses and strains and development of matrix that satisfies these constraints.
  • Implications of applying soil mechanics principles such as effective stress and stiffness to FE analysis.
  • Biot coupling and Terzaghi-Rendulic consolidation.
  • Drucker’s stability postulate.
  • Implementing FE code in geotechnical engineering.

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Department of Civil Engineering, University of Pretoria