Granular flows down inclined and vibrated planes: influence of basal friction Naïma Gaudel, Sébastien Kiesgen de Richter, Nicolas Louvet, Mathieu Jenny and Salaheddine Skali-Lami EPJ Web Conf., 140 (2017) 03051 Published online: 30 June 2017 DOI: 10.1051/epjconf/201714003051