U形渠道量水槽的比较与选型

Comparison and Selection of Measuring flume of U-shaped Channel in the Canal Irrigation District

U形渠道具有其他形式输水渠道无法比拟的防渗效果好、整体性强、输水率高、抗冻胀、渠道占地面积小等优点,在渠灌区已经作为标准渠道推广应用,但U形渠道的量水槽选型是困扰U形渠道推广应用的瓶颈。目前作为标准推广应用的U形渠道的量水设施有3种,在通过实验室和灌区实际测试的基础上,从不同的角度对3种量水设施进行对比分析,为灌区U形渠道量水设施的选型提供依据。

U-shaped channels have incomparable advantages over other forms of water channels and they have been popularized and applied as the standard channels in the canal irrigation districts.The water-measuring devices of U-shaped channels have entered the research stage,new water-measuring devices appear continuously,and water-measuring accuracy has been improved constantly.But the question is how to choose the water-measuring devices of U-shaped channels.Currently there are three sorts of water-measuring devices of the U-shaped channels,which have been popularized and applied as the standard.Through the actual tests in the laboratories and irrigation districts,a comparison is made of the three sorts of water-measuring devices from different angles,and then a reference is provided for the selection of the water-measuring devices of the U-shaped channels in the channel irrigation districts.