本文针对紊流近壁区域泥沙运动的跳跃长度、跳跃高度、休止时间及运动速度的研究目前仍处于摸索阶段,所得结果也非常粗糙,特别是在泥沙跳跃长度、跳跃高度实测方面缺乏较系统的,较精确的实验资料这一现状,设计了一套用高速摄影机拍摄紊流近壁区域泥沙滚动,跳跃运动的系统实验来揭示单颗粒泥沙在粗糙定床上的滚动、跳跃运 In this paper, the research on jumping length, jumping height, resting time and moving speed of sediment movement near the wall in turbulent flow is still in the groping stage, and the results obtained are also very rough. Especially, there is a lack of comparison between the jumping length and jumping height Systematic and accurate experimental data, a set of system experiment was designed to capture the rolling and jumping motion of sediment in the turbulent near-wall region by using a high-speed camera to reveal the rolling and jumping movements of a single sediment on a rough fixed bed