Author(s)

A.L. Simonelli

Abstract

Displacement analysis in earth slope design under seismic conditions A.L. Simonelli Gruppo Nazionale per la Difesa dai Terremoti, C.N.R., Istituto di Tecnica delle Fondazioni, Napoli, Italy ABSTRACT During the past years experience has shown that the traditional pseudo-static design methods applied to earth slopes under seismic conditions are rather ineffective. Alternative design methods can be based on the evaluation of the earth slope displacements induced by real earthquake excitations. In the first part of the paper a brief illustration of the different approaches is presented; then the Code pseudo-static method and a displacement analysis procedure are applied, for the sake of simplicity, to the typical case of an indefinite slope in cohesionless soil, and to a set of accelerometric data coming from the 1980 Irpinia earthquake. The comparison points out noticeable differences in the results, confirming that the adopted pseudo-static method overestimates the earthquake effect

Keywords