浮式竹格栅坝水力特性试验研究

THE FLOATING BAMBOO BAR SCREEN DAM HYDRAULIC PROPERTY EXPERIMENT AND STUDY

在用于河道整治的建筑物中，浮式格栅坝是其中的一种，它具有结构简单，施工方便，造价低廉等诸多优点．通过直接影响格栅坝下游流速场变化的坝体透水系数α、坝体倾角θ、河道水深ｈ、减速率等重要水力参数的试验研究；提供了在不同坝体透水程度、河道平均流速及水深、坝体倾角运行工况下的图表．为格栅坝的设计及运行管理提供了可靠的依据．

The floating bamboo bar screen dam is one of struetures which are used to channel improvement. It have simple structure, convenient construction, cheap fabrication etc. virtue. By dam cofficient α of transmission, dam angle θ of lean, channel water depth h, deceleration rate etc. important hydraulic parameter's experiment and study which influence directly the bar screen dam downstream velocity field variation, this paper provides the charts which is on defferent dam transmission degree, channel average velocity, water depth, dam angle of lean mode of operation. It provide the reliable basis for the bar screen dam design and operation management.