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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Volume 8, issue 5
Nat. Hazards Earth Syst. Sci., 8, 1149–1159, 2008
https://doi.org/10.5194/nhess-8-1149-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Time and intensity prediction in landslide hazard assessment

Nat. Hazards Earth Syst. Sci., 8, 1149–1159, 2008
https://doi.org/10.5194/nhess-8-1149-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.

  21 Oct 2008

21 Oct 2008

A model for triggering mechanisms of shallow landslides

L. Montrasio and R. Valentino L. Montrasio and R. Valentino
  • Department of Civil Engineering, University of Parma, Italy

Abstract. Rainfall-induced shallow landslides, also called "soil slips", are becoming ever more frequent all over the world and are receiving a rising interest in consequence of the heavy damage they produce. At the University of Parma, a simplified physically based model has been recently set up for the evaluation of the safety factor of slopes which are potentially at risk of a soil slip. This model, based on the limit equilibrium method applied to an infinite slope, takes into account some simplified hypotheses on the water down-flow and defines a direct correlation between the safety factor of the slope and the rainfall depth. In this paper, this model is explained in detail and is used in a back analysis process to verify its capability to foresee the triggering instant of rainfall-induced shallow landslides for some recent case studies in the Emilia Romagna Apennines (Northern Italy). The results of the analyses and of the model implementation are finally shown.

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