Prediction of Seismic Slope Displacements by Dynamic Stick-Slip Analyses

Journal Article · Tue Jul 08 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2963873· OSTI ID:21149015

Ausilio, Ernesto ^[1]; Costanzo, Antonio ^[1]; Silvestri, Francesco ^[2]; Tropeano, Giuseppe ^[1]

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1. University of Calabria (Italy)
2. University of Naples 'Federico II' (Italy)

A good-working balance between simplicity and reliability in assessing seismic slope stability is represented by displacement-based methods, in which the effects of deformability and ductility can be either decoupled or coupled in the dynamic analyses. In this paper, a 1D lumped mass 'stick-slip' model is developed, accounting for soil heterogeneity and non-linear behaviour, with a base sliding mechanism at a potential rupture surface. The results of the preliminary calibration show a good agreement with frequency-domain site response analysis in no-slip conditions. The comparison with rigid sliding block analyses and with the decoupled approach proves that the stick-slip procedure can result increasingly unconservative for soft soils and deep sliding depths.

• OSTI ID: 21149015
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1020; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
CALIBRATION
DEPTH
DUCTILITY
EARTHQUAKES
FORECASTING
NUMERICAL ANALYSIS
RELIABILITY
RUPTURES
SEISMOLOGY
SLIP
SLOPE STABILITY
SOILS