多个环翼式桥墩冲刷影响研究  

Researches of Scouring Effect between Multiple Ring-wing Piers

作　　者：任致贤 牟献友[1] 柏涛[1] 洪龙生[1] 吴金峰[1] 

机构地区：[1]内蒙古农业大学水利与土木建筑工程学院,内蒙古呼和浩特010018

出　　处：《水力发电》2016年第4期105-108,共4页Water Power

基　　金：国家自然科学基金项目(51369022);内蒙古自治区自然科学基金项目(2013MS0719)

摘　　要：为研究多个环翼式桥墩间的局部冲刷影响,利用正交试验设计,考虑2个试验指标(墩前近底垂向流速、最大冲坑深度),选择3个有关因素(防冲板半径A、防冲板安装高度H和桥墩横向间距S)进行条件试验,对试验结果进行极差和方差分析,确定3个因素的主次关系。结果表明,主次关系的排列为防冲板的安装高度、防冲板半径、桥墩横向间距,且防冲板的安装高度和防冲板的半径对防冲效果的影响远远大于桥墩横向间距。In order to study the local scour around ring-wing piers, the orthogonal experiment is designed by considering with two test indicators（ the vertical flow velocity near the end of pier and the maximum scour depth） and selecting three relevant factors（ radius of baffle plate-A, mounting height of baffle plate-H and lateral spacing of piers-S）. By range analysis and variance analysis of test results, the primary and secondary influencing factors are determined respectively. The results show that the importance order of three factors on local scour is mounting height of baffle plate, radius of baffle plate and lateral spacing of piers, and the influences of mounting height and radius of baffle plate on scour effect are far greater than the lateral spacing of piers.

关 键 词：多个环翼式桥墩 正交试验 影响因素 主次关系 

分 类 号：U446.1[建筑科学—桥梁与隧道工程]