Failure mechanism and characteristics of soil subjected to interaction between soil elements in simple shear

摘要

To clarify shear behaviour in soil elements in a shear band which undergoes interaction between soil elements, principal stress rotation, etc, a simple shear test using a large specimen with five-coupled elements was conducted with the following results: the middle three elements produce the pure shear state by interaction, and show shear behaviours similar to those in a shear band and a two-step failure mechanism in which the overall failure follows the formation of local failure surfaces; one of Coulomb's and Mohr-Coulomb's failure criteria can derive the other of the two, etc.