Search results for "physically-based model"

showing 3 items of 3 documents

Modelling Rainfall-induced Shallow Landslides at Different Scales Using SLIP - Part II

2016

Abstract This paper (Part II) is companion of another one published in this Conference (Part I). Both the papers describe the approach followed in the application of the SLIP model at different scales to foresee the triggering mechanism of rainfall-induced shallow landslides. In particular, this paper (Part II) focuses on the modeling at medium and large scale (regional and national level). The possibility of using the same means to model the phenomenon from the scale of the representative elementary volume (i.e. flume laboratory tests) to the medium and large scale (hundreds or thousands square kilometers wide areas) allowed from the one hand to strengthen the model assumptions and on the …

021110 strategic defence & security studiesEngineeringbusiness.industryrainfallShallow landslides0211 other engineering and technologiesLandslide02 engineering and technologyGeneral MedicineSlip (materials science)010502 geochemistry & geophysics01 natural sciencesphysically-based modelFlumeslope stability analysisRepresentative elementary volumeGeotechnical engineeringNational levelbusinessSlope stability analysisEngineering(all)Seismology0105 earth and related environmental sciencesProcedia Engineering
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Modeling the hydrological and mechanical effect of roots in shallow landslide analysis

2015

The additional cohesion exercised by vegetation roots (cr) provides an important contribution to the slope stability. This study proposes a methodology for estimating the cr term in a hillslope landslide analysis within a coupled ecohydrological-stability model. The coupled model simulates the spatial distribution and temporal dynamics of the Factor of Safety (FS) as a function of soil moisture dynamics, by taking into account the hydrological effects of vegetation through the root water uptaking. The additional mechanical root cohesion is estimated in a Fiber Bundle Model framework that allows for the evaluation of the root strength as a function of stress-strain relationships of populatio…

hillslope instabilityvegetation root cohesionSettore ICAR/02 - Costruzioni Idrauliche E Marittime E Idrologiahillslope instability; vegetation root cohesion; hydrological modelling; physically-based modelshydrological modellingphysically-based models
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Hydrological and mechanical effects of roots in shallow landslide analysis: A physically-based approach

2015

This study provides the first insights of a methodology for estimating the additional cohesion exercised by vegetation roots in a hillslope landslide analysis within a coupled ecohydrological-stability model. The existing coupled system is able to simulate the spatial distribution and temporal dynamics of Factor of Safety (FS) as a function of soil moisture dynamics. The model takes into account the hydrological effects of vegetation which, through the root water uptaking, contributes in reducing the soil water content and, thus, in increasing the slope stability. The additional mechanical root cohesion is estimated in a Fiber Bundle Model (FBM) framework that allows for the evaluation of t…

hillslope instabilityvegetation root cohesionSettore ICAR/02 - Costruzioni Idrauliche E Marittime E Idrologiahydrological modellingphysically-based models
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