桥墩局部冲刷计算探讨  

Study on calculation of local scour at bridge pier

作　　者：吴雪茹[1] 陈光强[1] 莫崇勋[1] 张小飞[1] 苏国韶[1] 

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2008年第4期370-373,共4页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(40702053)

摘　　要：为了确定桥墩的局部冲刷深度,运用不同的计算公式,对多座桥梁的桥墩进行局部冲刷计算.计算结果表明,不同公式计算的结果相差较大,各冲刷参数对局部冲刷影响明显.说明在计算桥墩的局部冲刷时,须根据桥梁所在的河段情况,选择适合的计算公式和参数,才能确保局部冲刷深度计算的准确性.Different equations were used to analyze the local scour at bridge pier of several bridges. The results showed that there＇s a huge difference among results of different equations with different value of parameters. Therefore, in order to obtain reliable result of local scour depth during analysis local scour at bridge pier, reasonable equations and their parameters must be determined by actual situation of bridge and river.

关 键 词：桥墩 局部冲刷 水流流速 公式 参数 

分 类 号：U442.4[建筑科学—桥梁与隧道工程]