As a guest user you are not logged in or recognized by your IP address. You have
access to the Front Matter, Abstracts, Author Index, Subject Index and the full
text of Open Access publications.
Almost all soil slides occur along a shear bands. But the assessment of this feature is not so clear, in spite of the abundant research carry on by several authors. In this paper, a simple theory based on linear granular mechanics is presented, which uses the concept of linear chains of forces, from which the stresses due to the own weight of the soil are calculated. These elastic stresses satisfy the equations of equilibrium and the boundary conditions. The mapping of the circumference of contact in a packing with the Casagrande’s compression diagram yields the bifurcation of the mechanical response, the softening mechanism, and the rotation of the packing. By assuming the conservation of the chains of forces in dilatant packings, the angle of the shear band is found for the elastic state of the sample, and the arrangement of grains within the shear band come to be contractive. The generalization of these results to a bilinear soil slope allows finding the slip surfaces as an isogonal line to the trajectory of the principal stress. This operation is carried out using an elementary numerical method, since the resultants of the involved shear stresses are integrals along the shear band. The line of failure thus obtained allows a rational calculation of the slope stability, and fits very well to the experimental data reported by several authors.
This website uses cookies
We use cookies to provide you with the best possible experience. They also allow us to analyze user behavior in order to constantly improve the website for you. Info about the privacy policy of IOS Press.
This website uses cookies
We use cookies to provide you with the best possible experience. They also allow us to analyze user behavior in order to constantly improve the website for you. Info about the privacy policy of IOS Press.