摘要
以重庆三峡库区山区小型灌溉渠道为例,对可能影响渠道工程造价的各种修建及维护费用进行逐次分析.在保证输水效率的前提下,利用公式推导比较两种不同宽深比条件下,即传统的宽深比2∶1宽浅式灌溉水渠和文中设计的宽深比1∶1灌溉水渠,对各项费用进行比较.发现对于山区小型灌溉渠道,采用宽深比1∶1的宽浅式灌溉渠道,在影响比传统的水力学最优断面在修建使用过程中投入更少.
In order to ensure good water efficiency of irrigation canals as well as the engineering cost and economic benefit,this paper takes the mountainous small irrigation channel in Chongqing as an example,and analyzes the project cost and maintenance cost of various channels. On the premise of ensuring successive water efficiency,the cost is compared by using the comparative formula for two different aspect ratio conditions,namely the traditional design of wide shallow irrigation canals with width to depth ratio 2 ∶ 1 and that of the ratio of acequias with width to depth 1 ∶ 1. For small mountain irrigation channels,wide and shallow irrigation channels with the ratio of width to depth 1 ∶ 1 are less input than traditional optimal hydraulics section in construction.
出处
《浙江水利水电学院学报》
2017年第4期32-35,共4页
Journal of Zhejiang University of Water Resources and Electric Power
基金
2017年重庆市教委科研资助项目(KJ1735447)
关键词
灌溉渠道
宽深比
最优水力学断面
irrigation channel
width depth ratio
optimum hydraulic section
