摘要
采用实测资料分析的方法,研究了黄河下游滩槽冲淤演变对水沙过程的响应关系。研究结果表明:1986年后,进入黄河下游的水沙明显减少,导致下游河道滩槽皆淤。2000年后,由于小浪底水库蓄水拦沙运用,下游全程持续冲刷。黄河下游滩槽冲淤演变与水沙过程存在响应关系:主槽冲淤量随水量参数、水量分配参数的增大而减小;随沙量参数、沙量分配参数的增大而增大;滩地冲淤量随水量参数、沙量参数、水量分配参数和沙量分配参数的增大而增大。
The relationship between floodplain and main channel processes and flow and sediment characteristics in the Lower Yellow River were studied by the field data analyses. The results show that the flow and sediment entering the Lower Yellow River decreased significantly after 1986. Due to the operation of Xiaolangdi Reservoir,continuous scour occurred in the Lower Yellow River after 2000. The volume of scour-deposition of main channel decreased with flow parameter α1 and flow distribution parameter β1 increase,and which increased with the increases of sediment parameter α2 and sediment distribution parameter β2. The volume of scour-deposition of the floodplain increases with the increases of flow parameter α1,sediment parameter α2,flow distribution parameter β1 and sediment distribution parameter β2.
作者
杨晓阳
胡海华
张治昊
刘晨晖
YANG Xiao-yang;HU Hai-hua;ZHANG Zhi-hao;LIU Chen-hui(Yellow River Estuary Authority,Dongying 257091,China;China Institute of Water Resources and Hydropower Research,Beijing 100048,China)
出处
《泥沙研究》
CSCD
北大核心
2020年第1期16-20,共5页
Journal of Sediment Research
基金
国家重点研发计划项目(2016YFC0402408).
关键词
黄河下游
滩槽演变
水沙过程
响应关系
Lower Yellow River
floodplain and main channel processes
flow and sediment processes
response relationship
作者简介
杨晓阳(1976-),男,江苏盐城人,高级工程师,主要从事水力学及河流动力学研究。E-mail:yxysfm@163.com
