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伟大领袖毛主席教导我们:“水利是农业的命脉”。我国自解放以来,尤其是文化大革命以来,在毛主席的革命路线指引下,发奋图强,自立更生,修建了千万座水利工程;其中灌溉工程更是星罗旗布,普遍发展,对于抗御干旱灾害,提高农业生产起了决定性的作用。我国很多河流挟带大量沙石,修建引水渠系,如不解决好泥沙问题,就会使河道沙石进入渠道,淤积渠道,影响引水,甚至废弃。渠首防沙工程是解决泥沙入渠有效措施。现有渠
Great leader Chairman Mao taught us: “Water conservancy is the lifeblood of agriculture.” Since the liberation of our country, especially since the Cultural Revolution, under the guidance of Chairman Mao’s revolutionary line, our country has been making every effort to develop itself and relying on its own efforts to build 10 million water conservancy projects. Among them, irrigated projects have made remarkable achievements and have been widely developed. Drought disasters have played a decisive role in improving agricultural production. Many rivers in our country carry a large amount of sand and stone and build diversion channels. If the problem of sediment is not solved, the sand and gravel of the river will enter the channel, silting up the channels, affecting water diversion or even abandonment. Headway sand control project is to solve the sediment into the canal effective measures. Existing canal