WIT Press


Natural Hazards In Mountainous Environment And Theoretical Assessments: Differences And Analogies

Price

Free (open access)

Volume

75

Pages

10

Published

2004

Size

322 kb

Paper DOI

10.2495/GEO040111

Copyright

WIT Press

Author(s)

G. Lorenzini

Abstract

Among many types of natural hazards normally available, this work treats of a particular one called debris flow. One of the salient aspects of debris flow occurrence is linked to the reciprocal interaction of the solid and fluid components. Starting out from this consideration, this study develops a modelling methodology, based on dimensional analysis and on a quadratic type approach, which takes into consideration the entire field of visco-plastic and collisional-turbulent interactions. The good correlation between data calculated with the model and data measured in real events in the field, underlines the strength of the rheological model proposed, sufficiently close to the physics of the processes and representative of experimental evidence. 1 Introduction Phenomenolo

Keywords