PREDICTION OF THE MECHANICAL BEHAVIOR OF HARD SOILS- SOFT ROCKS USING NUMERICAL MODELLING TOOLS

Abstract

A hard soil-soft rock (HSSR) with an intermediate behavior and properties between hard soils and rocks show complex behaviors. Predicting the response of these materials requires using a mechanical model that can capture the main features of their behaviors. So, two different mechanical models ranging from simple elastic-perfectly plastic Mohr-Coulomb (M-C) to a more complicated strain hardening Double Yield (DY) model are used. The results of these two models are compared to declare the effect of the constitutive mechanical model on the ground behavior.