建桥后，桥墩局部冲刷与一般冲积河流不同。
Its local sour at bridge pier is different from that of alluvial channels.
为了方便研究，将桥墩冲刷分为自然演变引起的冲刷、一般冲刷和桥墩局部冲刷三部分。
For being convenient to study, pier scour would be divide into three part: erosion by develop naturally, generally erosion and part of pier-erosion.
引起桥墩局部冲刷的泥沙运动是以水流脉动为基础的，只有深入地了解水流的脉动特性，才能更好地提高对桥墩局部冲刷的认识。
Local scour on bridge pier caused by the sand movement is based on turbulence, understanding the turbulence characteristics in-depth can better raise awareness of local scour on bridge piers.
桥墩的局部冲刷，公式计算方法主要是根据桥墩附近的水流条件、泥沙条件、和桥墩特征条件，按规范计算得出结果。
Mainly based on conditions of current, sediment and characteristics of bridge pier, local scour is calculated according to specifications.
针对群桩墩处河床局部冲刷的复杂性，运用正态动床物理模型较好地预测了桥墩附近河床局部冲刷，并获得了现场监测结果的验证。
According to the local scouring around the pile foundation of the pylon, a normal movable-bed physical model test is conducted to predict the local scouring and is verified by the field measured data.
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.
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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