In this contribution we tackle the problem of a fast moving granular mass flowing on a steep slope and successively along a horizontal erodible layer. This setting is typical at many sites where rock and debris avalanching can occur or already occurred. In such a common condition, the high energy content and the entrapment of erodible materials along the path can strongly control the evolution of the landslide motion. We briefly present preliminary experimental tests performed on a simplified slope with just one kind of sand and one volume of granular material.We find a significant role of the erodible layer, which can modify the flow dynamics and the shape of the final deposit compared to flow without layer. .
Crosta, G., DE CARO, M., Volpi, G., DE BLASIO, F., Imposimato, S., Roddeman, D. (2015). Propagation and erosion of a fast moving granular mass. In Engineering Geology for Society and Territory - Volume 2: Landslide Processes (pp.1677-1681). Springer International Publishing [10.1007/978-3-319-09057-3_298].
Propagation and erosion of a fast moving granular mass
Crosta, G;DE CARO, MATTIASecondo
;VOLPI, GIORGIO;DE BLASIO, FABIO VITTORIO;
2015
Abstract
In this contribution we tackle the problem of a fast moving granular mass flowing on a steep slope and successively along a horizontal erodible layer. This setting is typical at many sites where rock and debris avalanching can occur or already occurred. In such a common condition, the high energy content and the entrapment of erodible materials along the path can strongly control the evolution of the landslide motion. We briefly present preliminary experimental tests performed on a simplified slope with just one kind of sand and one volume of granular material.We find a significant role of the erodible layer, which can modify the flow dynamics and the shape of the final deposit compared to flow without layer. .
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