利用弯道环流原理,采取正面引水、侧面排沙的布置形式,来防止或减少泥沙入渠,在我国山区河流上修建的灌溉和发电引水枢纽工程中已广泛应用,目前已遍及新疆、甘肃、青海、四川、云南、贵州、湖北、陕西等省区.根据各地区的特点,采取了不同的布置形式.它们有人工弯道式引水枢纽,拦河闸式引水枢纽,引渠式引水枢纽,凸岸 The use of curved circulation principle, take the front diversion, side sediment arrangement, to prevent or reduce the sediment into the ditch, in our mountain river irrigation and power generation diversion project has been widely used, has been throughout Xinjiang, Gansu, Qinghai, Sichuan, Yunnan, Guizhou, Hubei, Shaanxi and other provinces and autonomous regions.According to the characteristics of different regions, they adopt different layout forms.They have artificial curve-type water diversion hub, barrage gateway diversion hub, Convex shore