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| Titel |
Quantitative Debris flow Risk Assessment in Volcanic Areas |
| VerfasserIn |
Guillermo Toyos, Rashmin Gunasekera, Guilio Zuccaro, Gianni Zanchetta, Roberto Sulpizio, Clive Oppenheimer  |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250038513
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| Zusammenfassung |
| We studied the debris flow events that occurred in May 1998 in the area of Sarno, Southern
Italy aiming at characterising the relationship between the impact intensity of debris flows
and the physical damage to buildings. The quality of data and hence quantification of
structural damage was influenced by several factors including the complexity of the
morphology of the area.
We obtained maps of velocity and dynamic pressure of eight of the flows at Sarno and
integrated them with data on structural damage and building typologies to determine
the onset of destruction. We conclude that although structural damage may start
at dynamic pressures of ~ 6 kPa, these results are similar to the failure loads of
buildings under the action of high and low density currents obtained from engineering
modelling work. These results may constitute the starting point for the development
of a quantitative loss estimation methodology by debris flows in volcanic areas,
which will ultimately contribute towards the improvement of land use planning and
mitigation strategies and may result in increased interest by the re-insurance industry. |
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