摘要
分析了长江口众多外沙内泓河段的特征和演变趋势 ,并利用平面二维有限元水流数学模型模拟分析该类型河段的水动力特性 ,进而从水流和河床演变 2个方面对保滩护岸结构破坏机理进行分析 。
The characters of outer bar and inner stream reach in the Yangtze river estuary are presented by analysis of streambed evolution. Based on the value and distribution of flow velocity in construction stage by 2D hydrodynamic model, the failure mechanism of beach and bank protection works is studied from hydrodynamic, construction and streambed evolution. At last, the stratagies of beach protection and accretion promotion in construction and plan layout of groin and longitudinal dam are presented.
出处
《水土保持通报》
CSCD
北大核心
2001年第1期15-18,共4页
Bulletin of Soil and Water Conservation
基金
上海市海塘保滩工程可行性研究"项目! (K199942 )
关键词
长江口
外沙内泓河段
保滩护岸
河势演变
水流
数学模型
河段
the Yangtze river estuary
outer bar and inner stream
beach and bank protection
bed development
hydrodynamic model
