泥沙研究2025，Vol.50Issue(3)：45-49,5.DOI:10.16239/j.cnki.0468-155x.2025.03.007
串列组合桥墩的冲刷防护研究
Experimental study on the anti-scouring protection of tandem composite piers
摘要
Abstract
How to solve the scouring problem of bridge pier is a technical challenge that runs through the entire life of a bridge.In order to obtain the optimal anti-scouring protection effect on the bridge pier,active protection type of anti-scouring plates were designed and optimized structurally by a series of anti-scouring protection tests with different flow conditions.The test results show that the overall reduction rate of double-pier protection is higher than that of single-pier protection,which indicating that the former has the most ideal protective effect.With the double-pier protection,the reduction rate is greater under open channel conditions,and the next reduction rate is under ice cover conditions;the relationship between the standard error and the turbulence intensity is linearly correlated,that means the stronger turbulence intensity is accompanied by a larger standard error,which is not affected by the irrelevance of other variables.The power spectral attenuation rate is larger at the upstream pier front location,which is not subject to the masking effect,whereas the circulation at other locations is strong due to the sheltering effect,which results in a strong vorticity and a high spectral density.关键词
串列桥墩/冰盖/抗冲刷/防护/功率谱Key words
tandem bridge piers/ice cover/anti-scour/protection/power spectrum分类
建筑与水利引用本文复制引用
高鹏程,牟献友,常蕾,尚志强..串列组合桥墩的冲刷防护研究[J].泥沙研究,2025,50(3):45-49,5.基金项目
国家自然科学基金项目(52169017) （52169017）
内蒙古自治区科技厅重大专项(150000243033210000057) （150000243033210000057）
