摘要
本文根据流体力学的基本原理,对丁坝周围的水流结构及其形成原因进行了分析和讨论。通过对局部冲刷深度的跟踪测量,按冲刷发展的不同阶段分析了丁坝周围局部冲刷坑的形成过程,根据试验实测资料,由量纲分析原理和回归分析的方法,得到了丁坝局部冲刷深度的计算公式。
In this paper, Using basic principle of fluid mechanics, the flow state around spur dike and its mechanism are discussed. Through measuring the scour depth, by different stage of scour hole development, the process of development of scour hole is studied. According to experiment data, using the principle of dimensional analysis and the method of regressional analysis, a formula for determining scour depth is obtained.
