Experimental Investigation on the Impact Dynamics of Saturated Granular Flows on Rigid Barriers

ABSTRACT Debris flows involve the high-speed downslope motion of rocks, soil, and water. Their high flow velocity potential for impact loading make them one most hazardous types gravitational mass flows. This study focused on roles particle size grading degree fluid saturation behavior fluid-saturated granular a model rigid barrier in small-scale flume. The use transparent debris-flow plane laser-induced fluorescence allowed particles within medium to be examined tracked using image processing. In this study, experiments were conducted consisting two uniform well-graded gradings at three different contents. evolution profiles, load, bed normal pressure, pore pressure measured analyzed order gain quantitative comparison their before, during, after impact.