Analytical solution of multi-step reinforced soil slopes due to static andseismic loading

摘要

The purpose of this paper is to present an analytical solution of multi-step reinforced- soil slopesdue to static and seismic loading. This solution is based on the kinematic theorem of limit analysis and onthe quasi-static approach and concerns homogenous cohesionless soils that are expected to deform plastically,following the Coulomb yield criterion. For the implementation of this methodology, a computer programmehas been designed and representative examples are shown. With this programme, different types of potentialfailure mechanisms are studied and the most critical ones are used for the final design. Finally, multi-step andone-step reinforced slopes with the same height and soil mechanical characteristics are analysed and comparedand conclusions are derived concerning their stability and the amount of the reinforcement that is necessary toprevent failure.