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Influence of man-made cuts on the stability of pyroclastic covers (Campania, southern Italy): a numerical modelling approach.
- Source :
- Environmental Geology; Feb2003, Vol. 43 Issue 4, p371-384, 14p
- Publication Year :
- 2003
-
Abstract
- Intense rainfall in May 1998 and December 1999 caused disastrous landslides in the Sarno-Quindici and Cervinara areas (Campania, southern Italy). The landslides began with slips of the local pyroclastic covers mantling the carbonate relief and then evolved into debris flows/avalanches. The study discussed in this paper used a numerical modelling approach to assess the influence of man-made cuts on the stability conditions of pyroclastic covers. The model that was developed took into account initial failure conditions in order to better simulate the impact of man-made cuts along the slopes, with or without water seepage into the permeable pumiceous layers of the pyroclastic multilayer. Numerical analysis of stress-strain field clearly showed that tracks or geomorphological discontinuities had a negative impact on the multilayer stability conditions. Consequently, preservation of this vulnerable environment requires correct forest management practices. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09430105
- Volume :
- 43
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Environmental Geology
- Publication Type :
- Academic Journal
- Accession number :
- 16565402
- Full Text :
- https://doi.org/10.1007/s00254-002-0658-0