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| 环翼式桥墩环翼式挡板最佳延伸长度试验 | |
| 引用本文： | 成兰艳,郝拉柱,牟献友,裴国霞,张亮.环翼式桥墩环翼式挡板最佳延伸长度试验[J].水利水电科技进展,2013,33(2):32-36. |
| 作者姓名： | 成兰艳 郝拉柱 牟献友 裴国霞 张亮 |
| 作者单位： | 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 2. 巴彦淖尔市河套水利水电勘察设计有限公司,内蒙古 巴彦淖尔 015000 3. 内蒙古新禹水利水电工程建设有限公司,内蒙古 巴彦淖尔 015000 |
| 摘 要： | 为研究环翼式桥墩环翼式挡板的最佳延伸长度,进行了不同流速和不同环翼式挡板延伸长度下环翼式桥墩的局部防冲刷试验。试验结果表明:环翼式挡板的延伸长度不同,桥墩的冲刷效果有较大的差别,当环翼式挡板的延伸长度与桥墩的半径相同时,与无挡板的桥墩相比最大冲坑深度可减小57.6%,近底垂向流速最大可减小70.4%,近底紊动强度也明显减小,防冲刷效果显著。 |
| 关 键 词： | 环翼式桥墩 挡板 延伸长度 冲坑深度 紊动强度 |
| 修稿时间： | 2013/3/5 0:00:00 |
Experimental research on optimal development lengths of ring wing baffle of ring wing pier |
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| Abstract: | In order to determine the optimal development lengths of ring-wing baffle,a series of experiments were carried out to study the effects of local scour with different velocities and different baffle development lengths.The test results show that the local scour effects are significantly different for piers with different ring-wing baffle lengths.Compared to the flow conditions without baffles,the maximum scour length and the near-bottom vertical velocity can be reduced by 57.6% and 70.4%,respectively,and near-bottom turbulence intensity is significantly reduced when the development lengths of ring-wing baffle and the pier radius are the same. |
| Keywords: | ring wing pier baffle the development lengths scour depth turbulence intensity |
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