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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。
According to the basic principles of fluid mechanics, this paper analyzes and discusses the water flow structure around the dams and its formation. Through the measurement of the local scour depth, the formation process of local scouring pits around the dikes is analyzed according to the different stages of scouring. Based on the measured data, the calculation of the scour depth of the dikes is obtained by the principle of dimension analysis and regression analysis formula.