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| Titel |
Numerical analysis of deep-seated mass movements in the Magura Nappe; Flysch Belt of the Western Carpathians (Czech Republic) |
| VerfasserIn |
I. Baroň, F. Agliardi, C. Ambrosi, G. B. Crosta |
| 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 ; 5, no. 3 ; Nr. 5, no. 3 (2005-04-21), S.367-374 |
| Datensatznummer |
250002486
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| Publikation (Nr.) |
 copernicus.org/nhess-5-367-2005.pdf |
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| Zusammenfassung |
| Deep-seated slope failures are common features in the mountains of the Raca
Unit, Magura Nappe of the Flysch Belt of Western Carpathians. Since they
represent very complicated system, understanding of their evolution and
triggers still remains unclear. We tried to provide a back-analysis of their
development by using a finite difference code (FDM) of continua (Flac 4.0).
We confirmed that such large mass movements could be triggered by water
saturation of the bedrock in the three particular geological and geomorphic
settings. Such situation could have been caused by heavy rainfalls in humid
phases of the Holocene or permafrost melting in Late Glacial. The effects of
faulting, very deep weathering of the bedrock, low geotechnical parameters
of smectite-rich material and the local slope geometry have also been
accounted for in numerical models, as well as the other triggering factors
of slope instability. FDM modelled shear zones are in agreement with
observations. |
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