不同坝型在不同流量下水力特性的试验研究

现代城市河流治理备受关注,除了要满足防洪排涝要求,保护河道的自然风貌,美化环境,也要符合生态的科学性原则1],该文通过室内水槽模型试验,对城市河道修建挡水建筑物后在3种不同流量下水流特性变化进行实验研究。通过分析作者认为开口坝更有利于河道的流动水不给,且产生多级流速带,故可适应不同水生生物的生存,开口坝更利于坝体的稳定。本试验能为兼顾生态的城市河道治理提供依据。

Experimental Research of Hydraulic Characteristics of Different Type Dam in Different Flow

Concerning with modern urban river management,in addition to meet the requirements of flood control and drainage,protecting the river＇s natural landscape,landscaping,in accordance with the scientific principles of ecological.Through the indoor water tank model tests,researching the characteristics changes in three different flow after building the retaining structures of the city rivers.By analyzing,the open-dam is more conducive to the flowing water supplying of river,and the resulting multi-velocity zone,it can adapt to different aquatic life,opening the dam is more conducive to the stability of the dam.The test will providing a basis to the urban river regulation that considering the ecology.