第三部門：材料・複雑現象の力学（B)

[S03B-04] Effect of large particle content on debris flow velocity using binary granular mixture

*Masato TAUE¹, Sho YOSHIMURA¹, Yukio NAKATA¹, Toyokazu MURAKAMI², Hirofumi HISADA², Nasaru TAKEMOTO² (1. Yamaguchi University, 2. Nippon Expressway Research Institute Company Limited)

Keywords:debris flow, flow velocity, gravel fraction, void ratio

A debris flow model experiment was conducted for binary granular mixture, in order to evaluate the effect of the large particle content on the debris flow velocity. The obtained flow velocity decreases approaching the large particle content which having the maximum density of binary granular mixture.