丁坝是河道及航道整治工程中一种常用的重要建筑物，具有控制河势、保护岸滩、束水攻沙及壅高水位等多种功能。
The spur-dike is a common important building which is usually used in river course improvement projects, controlling river trend, bend protection, beam attack sand and high water levels.
湖岸整治工程多用平顺护岸必要时也可采用短丁坝护岸。
The renovation project with smooth revetment when necessary can also adopt a short spur dike revetment.
局部绕流冲刷是丁坝和桥墩等水工建筑物周围常见的水力现象，是造成该类工程破坏的重要原因之一。
Local scour is a common occurrence around hydraulic structures like spur-dikes and bridge foundations. This affair is a main reason of failure of bank protections and Bridges.
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