盐灌船闸下游河段整治方案研究

fter the construction of Yanguan Lock on tidal estuaries, sediment deposition under lock is inevitable that is caused by the deformation of tidal wave, so, it is necessary to research the measures for deposition reduction to reduce the sediment deposition of lower basin. The text put forwards a lot of testing scenarios in the stage of fixed-bed model test to regulate the Yanguan Lock ’s lower approach and Dongsancha, through analyzing the current velocity, the flow pattern and the cross current of every scenario and comparing of the merits and drawbacks and feasibility of every scenario we get the optimal scenario to regulate the lower approach and Dongsancha, accordingly, it provides dependable data for the mobile-bed model test of next stage and the use for reference for layout and design.