摘要
钱塘江河口受上游来水和下游潮汐共同作用,动力条件复杂。为研究闸站排涝对外江侧洪潮动力影响,以八堡泵站为例构建河工物理模型,对泵站出口河段的洪水、潮水动力及通航进行对比试验研究。结果表明:250m/s的排涝流量对水位的影响范围在1km之内,涝水对主流的顶推作用使贴岸流速有所减小,不会造成海塘前的水流集中,船闸可通航时长减小幅度在0.1h内。
Affected by both the upstream flows and downstream tides,the Qiantang River Estuary has complex dynamic conditions.To study the influence of pumping station drainage on flood tide dynamics,a comparative experimental research was conducted on flood,tidal dynamics and navigation at the exit section of Babao Pimping Station by establishing a small--scale hydraulic physical model.The results show that the infuencing scope of 250 m2/s drainage flow on the water level is within 1 km;due to the pushing effect of drainage on the main stream,the velocity near the shore is reduced,and it won't cause the flow concentration in front of the seawall,and the decrease of navigable time is within 0.1h.
作者
王瑞锋
张芝永
孙超
何昆
WANG Ruifeng;ZHANG Zhiyong;SUN Chao;HE Kun(Zhejiang Institute of Hydraulics&Estuary(Zhejiang Institute of Marine Planning and Design),Hangzhou 310020,Zhej iang,China;Zhejiang Provincial Key Laboratory of Estuary and Coast,Hangzhou 310020,Zhejiang,China)
出处
《浙江水利科技》
2021年第1期24-28,共5页
Zhejiang Hydrotechnics
基金
浙江省水利科技计划项目(RC1907)
浙江省水利河口研究院院长基金(河口A19013)。
关键词
强潮河口
八堡泵站
洪潮动力
物理模型
排涝
strong tidal estuary
Babao Pumping Station:flood tide dynamic
physical model
drainage
