Loose-snow avalanches occur frequently after snow-falls or as long as snowpack evolves in winter.The two relevant points in the signature of this kind of avalanches are: the lack of internal cohesion and the inverted V shape of the avalanche, also known as ‘’pear’’ shape. In this research paper, the opening angle of such snow avalanches is investigated. A discrete mechanical model is defined and Mohr-Coulomb yield criterion is considered. Thanks to a graphical solution that considers Mohr’s circles, the opening angle is found and its independence from the value of the cohesion is shown.

Opening angle of loose-snow avalanches / DE BIAGI, Valerio. - In: GEAM. GEOINGEGNERIA AMBIENTALE E MINERARIA. - ISSN 1121-9041. - STAMPA. - L:3(2013), pp. 43-51.

Opening angle of loose-snow avalanches

DE BIAGI, VALERIO
2013

Abstract

Loose-snow avalanches occur frequently after snow-falls or as long as snowpack evolves in winter.The two relevant points in the signature of this kind of avalanches are: the lack of internal cohesion and the inverted V shape of the avalanche, also known as ‘’pear’’ shape. In this research paper, the opening angle of such snow avalanches is investigated. A discrete mechanical model is defined and Mohr-Coulomb yield criterion is considered. Thanks to a graphical solution that considers Mohr’s circles, the opening angle is found and its independence from the value of the cohesion is shown.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2540890
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