Braided channels commonly exist in the alluvial river.The most obvious difference between braided channel and single channel is in water flow and sediment transport.For the braided channel,flow and sediment in the diverge area and conflux area are more complex compared with the single channel,and it is easy for sediment silting,which results in water depth deficiency and navigation obstruction because of the broadening entrance.The braided channel has several sub-types,including duplex braided channel,on wh...