Study On Evolution And Remediation Project Of Taipingzhou Channel In The Lower Reaches Of The Yangtze River

Taipingzhoujie channel in the lower reaches of the Yangtze River is studied in this paper,and then the corresponding channel remediation program is obtained.First,the basic information of the Taipingzhoujie channel is collected and summarized by the combination of field investigation and literature review,and the current situation of the Taipingzhoujie channel is evaluated.Second,the evolution of riverbed and shoal is analyzed by qualitative and quantitative analysis based on the collected data.And the BP neural network prediction method is adopted to predict the channel width and characterize the changes.Furthermore,the water transport volume is predicted by combining forecasting models such as exponential smoothing,one-dimensional regression,elasticity coefficient,etc.The channel navigation standard is demonstrated,and the ship type and operation organization scheme are selected to provide the basis for the design of the channel remediation project.Based on the analysis of evolution of the Taipingzhoujie channel,the specific remediation principles are put forward and the layout of the remediation project is carried out,and the water level of the channel regulation and the width of the rectification line are calculated.Two feasible remediation plans were put forward.The plan No.1 used beach belts and fish bones.Type beach belt to prevent the continent beach from scouring and receding;scheme 2 does not use the comb-type beach belt and the diverting fish nozzle to promote the accumulation of beach body.Furthermore,it is designed to rectify the structure of buildings,revetment works and dredging projects.