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扇子碛是长江葛洲坝枢纽回水变动区的主要滩险,位于巫峡上口的大宁河口,称峡口滩。洪水期大量淤积,汛后冲刷强烈。葛洲坝枢纽蓄水后,该滩将有可能发生变化。图1为葛洲坝蓄水后,扇子碛冲沙(俗称走沙或洗槽)的情形。图2为扇
Fans moraine is the main beach of the Gezhouba junction backwater variation area of the Yangtze River, located in the mouth of Daning estuary Wukou Gap, called Xiakou mouth. A large number of siltation during the flood season, flood washed strong. Gezhouba Dam impoundment, the beach will likely change. Figure 1 shows the Gezhouba water storage, the fan moraine red sand (commonly known as walking or washing tank) situation. Figure 2 for the fan