The impact of sub-branch direction on sediment deposition in the condition of reciprocating mainstream flow

Sediment deposition is an inevitable problem during the construction of hydraulic and navigation projects in the sub-branchs of tidal river reaches. For sub-branchs along Jiangsu coastal area, researchers have done a lot of works during recent decades. Reciprocating flows were formed due to tidal effects in this area and sediment deposition differs with the intersection angle between mainstream and sub-branch.