Study on Incipient Velocity Formula of Non-uniform and Non-viscous Sediment Particles on Slope
In order to explore the problem of sediment particle starting flow rate of natural non-uniform sand channel project with large specific drop characteristic of landslide dam,the roll-ing start mode was adopted to redefine the concept of hidden degree,and comprehensively considered the hidden degree and exposure degree in the upstream and downstream of sedi-ment particles.Based on force analysis of the sediment particles on slope,the computing ver-tical mean velocity formula of non-uniform and non-viscous sediment particles on the slope were established.The results show that the calculated values in this paper are in better agree-ment with the measured values and the errors are smaller.