Abstract: Through the theoretical liquid dynamics complex study to the bridge pier and abutment circling flow,this paper related with bridge abutment maximum clear water equilibrium scouring experiment s analyses has made out the bridge abutment's velocity circulation, maximum flow capacity per unit width, and the maximum part scouring depth counting method.

Key words: abutment, circling flow complex tendency, velocity circulation, maximum scouring depth

摘要： 对不可压缩理想流体桥台平面绕流复势研究,确定桥台绕流流速环量和桥台极限绕流流量,并结合清水极限平衡冲刷实验进行桥台最大局部冲刷深度的理论探讨

关键词: 桥台, 绕流复势, 流速环量, 最大冲深