采用拦沙坝防护的浅基桥梁墩台局部冲刷研究  

Study on Local Scour Around Piers Protected by the Sediment Storage Dam

作　　者：伊廷军[1] 吴清波 赵海镜[3] 

机构地区：[1]胜利油田胜利工程建设集团有限责任公司第一工程处,山东东营257000 [2]郑州市水利建筑勘测设计院,郑州450007 [3]中国水利水电科学研究院,北京100044

出　　处：《水土保持研究》2008年第3期150-152,156,共4页Research of Soil and Water Conservation

基　　金：郑州铁路局科技攻关项目

摘　　要：采用水力模型试验的方法,针对典型工程,对桥墩周围河床的局部冲刷及拦沙坝的防护作用进行研究。初步研究表明,在桥墩下游修建拦沙坝作为遏制浅基桥梁附近河段溯源冲刷的工程防护形式是可行的,拦沙坝减缓桥墩附近局部冲刷的作用非常明显。通过研究提出的采用拦沙坝防护的桥墩局部冲刷公式为浅基桥梁工程防护设计提供了参考依据。Aimed at the representative project in the piers ,which is protected by the downstream sediment storage dam, this paper has studied local scour in piers and defensive function of the sediment storage dam by means of hydraulic model tests. In primary concluslons,as a kind of protective measure,the sediment storage dam is feasible,which can control backward erosion near these bridges have no enough buried depth,and its function of alleviating scouring depth is very obvious based on the study. The formula of local scour depth near piers protected by the sediment storage dam, deduced from the paper, will provide references for practices.

关 键 词：桥梁墩台 局部掏刷 拦沙坝 防护底坡 

分 类 号：TV131.63[水利工程—水力学及河流动力学]