关键词：高含沙水流; 揭河底; 黄河小北干流河段 [gap=1006]Key words：hyper-concentration flow; bottom tearing; Xiaobeigan main stream of the Yellow River
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Data of ultimate shear stress of hyper concentration flow are trained several times by Back Propagation (BP) neural network method.
应用误差逆传播（BP）神经网络方法，对高含沙流体极限剪应力进行了多次训练。
Bajiazui Reservoir was constructed at the upper Puhe River conveying the flow with sediment of hyper-concentration.
巴家嘴水库修建在高含沙水流的蒲河上游。
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