7[1]Hunt,J.,Brunner,G.W.,and Larock,B.E.Flow transitions in bridge backwater analysis[J].Journal of Hydraulic Engineering,1999,125(9):981-983.
8[2]Seckin,G.,Yurtal,R.,and Haktanir,T.Contraction and ex pansion losses through bridge constrictions[J].Journal of Hydraulic Engineering,1998,124(5):546-549.
3Brunner G W,Stanford gibson,Goodell C I/: HEC- I1.AS V4. I User' s M anual [ M ] .Davis : HydrologicEngineering Center of US Army Corps of Engineers, 2010:2-3.