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| Titel |
Numerical modelling of large landslides stability and runout |
| VerfasserIn |
G. B. Crosta, S. Imposimato, D. G. Roddeman |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 3, no. 6 ; Nr. 3, no. 6, S.523-538 |
| Datensatznummer |
250001309
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| Publikation (Nr.) |
 copernicus.org/nhess-3-523-2003.pdf |
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| Zusammenfassung |
| Modelling of flow-like landslides is
one of the possible approaches that can be used to simulate landslide
instability and flow development. Models based on continuum mechanics and
associated with a versatile rheological model are usually preferred to
predict landslide runout and relevant parameters. A different approach has
been used in this research. We have developed a 2-D/3-D finite element
code to analyse slope stability and to model runout of mass movements
characterised by very large displacements. The idea was to be able to use
different material laws already known, tested and verified for granular
materials. The implemented materials laws include classical elasto-plasticity,
with a linear elastic part and different applicable yield surfaces with
associated and non-associated flow rules. The application of Finite
Element methods to model landslide run-out, contrasts previous research
where typically depth-averaged equivalent-fluid approaches were adopted.
The code has been applied to the simulation of large rock avalanches and
rapid dry flows in different materials and under different geological and
geomorphological conditions. |
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