The paper reports a comparison among three methods of increasing complexity to estimate the seismic displacements of natural slopes: (1) a simplified method, based on the statistical relationships proposed by Ausilio et al. (2007); (2) a coupled approach (‘stick-slip’ model) based on a 1D lumped mass model to compute simultaneously the dynamic site response and the sliding block displacements (Ausilio, 2008); (3) 2D finite differences analyses, accounting for soil heterogeneity and topographic effects. The methods are calibrated on the case study of Calitri landslide, reactivated during the Irpinia earthquake in 1980. The results of the analyses permitted to assess the predictive capabilities of the proposed methods and their relative degree of conservativeness.
Evaluation of seismic displacements of a natural slope by simplified methods and dynamic analyses
AUSILIO, Ernesto;
2009-01-01
Abstract
The paper reports a comparison among three methods of increasing complexity to estimate the seismic displacements of natural slopes: (1) a simplified method, based on the statistical relationships proposed by Ausilio et al. (2007); (2) a coupled approach (‘stick-slip’ model) based on a 1D lumped mass model to compute simultaneously the dynamic site response and the sliding block displacements (Ausilio, 2008); (3) 2D finite differences analyses, accounting for soil heterogeneity and topographic effects. The methods are calibrated on the case study of Calitri landslide, reactivated during the Irpinia earthquake in 1980. The results of the analyses permitted to assess the predictive capabilities of the proposed methods and their relative degree of conservativeness.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
