On the Dilatancy of Fine-Grained Soils

A new evaluation method for the dilatancy of fine-grained soils based on monotonic and cyclic undrained triaxial tests has been established using two elasticity approaches: isotropic transverse hypoelasticity. The clays, Kaolin Lower Rhine Clay, with also shows that is dependent stress ratio, void straining direction along intrinsic material parameters. Similar to sand, we can observe a Phase Transformation Line beyond which further shearing induces volume increase. generalization Taylor rule from direct shear multiaxial space established, an extension accounting behaviour soft proposed. We formulate simple hypoplastic constitutive relation modified flow reproduces observed dilatant as well contractant behaviour. Some simulations prove accurate performance proposed relation.