RESEARCH DEVELOPMENT OF SOILS CONSTITUTIVE RELATION INVOLVING PRINCIPAL STRESS AXES ROTATION

The influences of principal stress axes rotation.on geotechnical engineering attract more and more attention. In this paper, the basic deformation characteristics of soils involving pure principal stress axes rotation, pure variation of stress Lode angle, multiple-factor variation, drained and undrained, are discussed. The influential soil constitutive models involving principal stress axes rotation, such as Matsuoka's model, kinematic hardening model, bounding surface model and the complete stress incremen...