Experiments on a dry granular avalanche impacting an obstacle: dead zone, granular jump and induced forces
Expériences sur des avalanches granulaires impactant un obstacle : zone morte, ressaut granulaire et forces induites
Résumé
This work describes small-scale laboratory tests on dry granular avalanches. Avalanches flow down a channel and impact a wall-like obstacle. A deposit generates upstream of the obstacle and plays an important role in the definition of the total mean force induced on the obstacle by the flow. The estimation of this force is crucial to design efficient protection structures against snow avalanches.