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Geohazards
June 18-21, 2006 - Lillehammer, Norway
| Editors: |
, International Centre for Geohazards, Oslo, Norway
, Managing Director, ILF - Consulting Engineers, Innsbruck, Austria
, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
, TU Bergakademie Freiberg, Institut für Geotechnik, Freiberg, Germany
, University of Washington, Seattle, Washington, USA |
The articles for these proceedings are not peer-reviewed.
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Predicting Rainfall-induced Movements of Slides in Stiff Clays
Michele Calvello, Department of Civil Engineering, University of Salerno
Leonardo Cascini, Department of Civil Engineering, University of Salerno
ABSTRACT:
A physically-based numerical method is presented for displacements hazard analyses, at large-scale, in the case of landslides characterized by movements along pre-existing slip surfaces induced by rainfall-triggered pore pressure fluctuations. The method comprises a transient seepage finite element analysis and a kinematic model. With reference to the latter, the rates of displacement are assumed to be of the viscous type and are related to the factors of safety along the slip surface computed performing time-dependent limit equilibrium analyses. Monitoring data from an active slide in Central Italy are then used both for calibrating the models, by means of an inverse analysis procedure that minimizes the errors between numerically computed results and available observations, and for validating the results of the calibrated models. Subsequently, the calibrated and validated models are used to predict the response of the slope to different rainfall scenarios. The proposed method has been named “R-u-F-v prediction.”
Michele Calvello and Leonardo Cascini, "Predicting Rainfall-induced Movements of Slides in Stiff Clays" in "Geohazards", Farrokh Nadim, Rudolf Pöttler, Herbert Einstein, Herbert Klapperich, and Steven Kramer Eds, ECI
Symposium Series, Volume P7 (2006). http://services.bepress.com/eci/geohazards/7
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