APPLICATION OF AN EXPERIMENTALLY BASED NON-LINEAR CONSTITUTIVE MODEL OF SOILS IN LABORATORY AND FIELD TESTS

There are difficulties in adapting many currently available constitutive models to fit the experimentally determined non-linear behaviour of soils. However, one such model, the modified variable moduli model, has been found to be a simple and convenient method for predicting the behaviour of two non-cohesive soils and an unsaturated expansive clay in practical applications. Recent work on these applications is reviewed. Whereas the parameters for the non-cohesive materials can be expressed as functions of the effective octahedral normal and the maximum shear stresses, the parameters for the expansive clay are shown to be independent of the total octahedral normal stress and can be expressed in terms of soil suction and the maximum shear stress. Also a combination of triaxial tests with isotropic pressure and with constant octahedral normal stress can provide all the necessary data without volume change measurements. (TRRL)

  • Corporate Authors:

    Institution of Engineers

    11 National Circuit
    Barton, A.C.T.,   Australia 
  • Authors:
    • RICHARDS, B G
  • Publication Date: 0

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Filing Info

  • Accession Number: 00303482
  • Record Type: Publication
  • Source Agency: ARRB Group Limited
  • Files: ITRD, TRIS
  • Created Date: Jan 30 1980 12:00AM