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1·The test results show that the apron can reduce back flow at the dam toe, and the piers can obviously diminish river bed scouring near the scour resistant wall.

试验结果表明：护坦减轻了下游纵向围堰左侧坝趾处的回流淘刷，隔流墩明显减轻了防冲墙附近河床的冲刷，确保了坝基和下游纵向围堰的安全。

2·A movable bed model test was carried out to study the flow diversion efficiency and local scour of a new-type submerged spur of sheet piles.

为研究新型板桩潜坝导流功效与局部冲刷问题，进行了针对性的动床模型设计。

3·A vertical two-dimensional flow model is developed to model the current around pipeline. A scour model is developed to model the change of bed level.

通过建立一个垂直二维紊流模型来模拟管道周围流场。建立泥沙冲刷模型来模拟海床底面变化。

4·Then, the calculating method of initial scour velocity of bed sand around submerged spur dikes is suggested.

在分析基础上，提出了漫水丁坝坝头床沙起冲流速的计算办法。

5·The plane two-dimension numerical simulation is used to study the simulation and calculation of the scour in a river whose bed is mostly cracked bedrock at the lower reaches of a spillway.

采用平面二维数值模拟方法，对溢洪道下游河床以破碎基岩为主的河流冲刷进行了模拟计算方法的探讨。

6·Up till now, local scour depth estimation in the nearshore architectures are assumed that whenever the seabed is flat, which not considered the common bed form: sand waves.

迄今，近岸水域建构筑物的局部冲刷深度的估算均假定局部冲刷前后为平床，没有考虑常见、广布的近岸沙波底形。

7·The main channel bed will scour if sediment amount from tributary debris is less than that the main stream can carry and the river evolution exhibits the characteristic of mountainous rivers.

当支沟泥石流输入主河的泥沙量小于主河的输沙量时，主河河床将下切，并逐渐恢复山区性河流的特征。

8·In this paper, the plane two-dimension numerical simulation is used to study the scour in a river whose bed is mostly cracked bedrock at the lower reaches of a spillway.

对溢洪道下游破碎基岩为主的非沙质河流冲刷进行了平面二维数值模拟计算方法的探讨。