摘要
针对某大型沙漠明渠输水工程退水问题,对退水建筑物进行了消能计算和设计。该设计结合严寒地区沙漠地形地质条件、冲蚀特点和渠道安全运行的快速退水要求,分析了沙漠渠道退水的合理布置型式,提出了距渠道一定距离以外设置封闭容泄区和输水渠软硬结合的防护原则。并通过1∶1比尺的现场试验,验证了退水布置型式的可行性,可为类似沙漠地区冲蚀条件较差的渠道型式设计提供借鉴。
Aiming at receding water in a large open channel water transmission project in the desert,the energy dissipation calculation and design of drainage structures are carried out.Combined with the desert topographic and geological conditions in cold regions,erosion characteristics and rapid water retreat requirements for safe operation of the channel,the reasonable layout pattern of desert channel water lowering is analyzed.The protection principle of setting up a closed drainage area and water transport canal at a certain distance from the channel is proposed.By the field test of 1:1 scale,the feasibility of water retreat layout is verified,and it can provide reference for the design of channel type with poor erosion conditions in similar desert areas.
作者
李颖
LI Ying(Ministry of Water Resources Xinjiang Uygur Autonomous Region Water Conservancy and Hydropower Survey and Design Institute,Urumqi 830063,China)
出处
《浙江水利水电学院学报》
2022年第1期32-37,共6页
Journal of Zhejiang University of Water Resources and Electric Power
关键词
沙漠渠道
退水建筑物
布置型式
防护原则
现场试验
desert channels
drainage structures
layout type
protection principles
field tests
