泥石流在渡槽中的流动速度研究

A study on flowing velocity in aqueduct of debris flow

根据流体力学的能量方程 ,求出泥石流在渡槽中任意断面的平均流动速度 .对计算所需的各参数分别进行了讨论 ,特别首次引入泥石流对一般水体的修正系数K ,最后 。

This paper inqures into the energy equation of debis flow in drainage canal, according to the law of coservation of energy.Mean current velocity of any transverse section of the debris flow of the aqueduct can be ascertained from this equation.and this paper also gives the course of inference of the equation,the formula of hydraulic raidius and energy loss of the debris flow in the process of flowing.Meanwhile this paper makes concrete analysis of all parameters? 玜\-1、a\-2、a\-3、ξ\-1、ξ\-2、n\-1、n\-2 ,especially first leades into a revised coefficient K contrast debris flow with water.Finally the theory is applied to the design of aqueduct of debris flow in pinchuan.K value( K =1 3) is obtained by a model experiment, and it is revised to 1 4 by inspection of the scene, then utilizing the equation,mean current velocity of the debis flow is reached in the exit transverse section of the equeduct.