Approche basée-géo informatique pour la prise en compte des forces sismiques dans la stabilité des talus

Abstract

Although the assessment of slope stability by boundary equilibrium methods is problematic in its comparison, one of these issues is apparent in Bishop's method. These negligent method sometimes-decisive parameters in the setting in motion of the slopes. Using a mathematical approach and a numerical programming, we took into account the action of various external agents, on the stability of the slopes (not taken by Bishop in its simplified or rigorous version). Using Bishop's (modified) method, we were able to follow the evolution of the safety factor according to the different combination of plies and seismic loads. The instability appears thus directly related to the position of these two disturbing agents. The spreading of geotextile sheets plays a decisive role in the stabilization of the slopes.