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黄河系高泥沙河流,含沙量变化幅度大,巴盟河套灌区从黄河引水,渠道含沙量随河水含沙量变化而增减,使渠道冲淤兼有。但三圣公枢纽兴建后,由于工程采取了拦沙及人工环流减沙等措施,使入渠沙量减少,出现了渠道以冲刷为主要矛盾的局面。渠道工程岁修养护也由清淤为主,转为护岸为主。多年实践证明打桩编柳与冲桩挂笆在渠道护岸中效果较佳,本文就这两项护岸措施的由来,应用效果,技术要求做概要介绍。一、打桩编柳与冲桩挂笆护岸措施的由来和演变打桩编柳来源于杨家河干渠,这条渠道设计流量为50秒立米,行水流量为20～60秒
The Yellow River is a high silt river, with a large variation in sediment content. The water from the Yellow River dominates the Ba Le Hetao Irrigation District. The silt content in the Yellow River increases or decreases as the sediment concentration in the river changes. However, after the construction of the Sam Shing Kung Hub, measures such as sand blocking and artificial sand circulation reduction have been taken to reduce the amount of sediment into the drainage canal and a major contradiction has arisen in the channel. The annual maintenance of channel engineering is also dominated by dredging and is mainly based on bank protection. Years of practice has proved that piling compaction and red pile hanging fence in channel revetment better, this article on the two revetment measures the origin, application effect, technical requirements to do an overview. First, the piling compaction Liu and red pile piles Bank revetment measures the origin and evolution Piling compilation Liu Yang from the river trunk, this channel design flow of 50 seconds of legislation, the line of water flow of 20 to 60 seconds