摘要
借助实测资料及模型试验研究成果,分析了黄河下游畸形河势的形成条件、发展过程、持续时间及易发河段等演化规律,提出了畸形河势的整治措施。研究表明:畸形河湾是黄河下游特定水沙及河道边界条件下形成的特殊河湾流路,其形成条件受河床的可动性、河床泥沙组成及水沙条件等影响,畸形河势具有一定的发展过程、持续时间和易发河段等特点,通过控制裁弯的裁弯比、开挖断面、入流角度及水沙边界条件等关键技术指标,可以实现整治畸形河势的目的。
Based on the field measured data and experimental results,this paper analyzed the evolutional law of the freakish river regime in the lower Yellow River,such as the formation conditions,the development process,the length of time and the incidental channel segment,and studied the river training measures of the freakish river regime. The results show that the freakish river bend is a flow path of special which is formed in the condition of the specially appointed water and sediment and the river boundary,the formation of the freakish river regime is affected by the mobility of the river bed,the form of the bed material load and the water and sediment condition,the freakish river regime has the characteristics of the development process,the length of time and the incidental channel segment. If the reasonable cut off ratio,cutoff section,inflow angle,water and sediment condition and other design specifications are chosen,the goal of the freakish river regime training will be able to be realized.
出处
《人民黄河》
CAS
北大核心
2015年第11期32-35,共4页
Yellow River
基金
"十二五"国家科技支撑计划项目(2012BAB02B01)
关键词
畸形河势
演化规律
裁弯
引河设计参数
黄河下游
freakish river regime
evolutional law
bend cut-off
design parameters of distributary channel
Lower Yellow River
