Analytical Pull-Out Model for Extensible Soil-Reinforcements

Abstract

A pullout test model is proposed using hyperbolic relation for highly extensible soil-reinforcement. The non-linear equation for interface pullout mechanism was non-dimensionalised, expressed in finite difference form and solved numerically using the Guass-Siedel technique. A parametric study was carried out for various ranges of relative stiffness and relative bond resistance. The normalised loaddisplacement relations and the variations of pullout force and reinforcement displacements with distance, are presented. The interface pullout response of the model is compared with the available experimental pullout test results for geotextile, polymer and nylon geosynthetic reinforcements.

Three-Dimensional Modeling of Spatial Reinforcement of Soil Nails in a Field Slope under Surcharge Loads

“…The interaction mechanism is characterized by the mobilization of frictional forces along the entire length of the inclusion, which consequently results in the generation of tensile forces along the reinforcement. Quite several analytical models [1][2][3][4][5] have been developed and used to qualitatively describe the principal mechanism, which are easy to use but may oversimplify the complex stress transfer mechanism.…”