CAUSES OF BACK-SILTATION IN THE NORTH PASSAGE OF YANGTZE ESTUARY AND EVALUATION OF THE ENGINEERING MEASURES

Qijin Fan

Abstract


This study focused on the fact that the amount of back-siltation in the deep waterway of North Passage has been increased and converged in the middle reach since 2005. This paper systematically analyzed impacts resulting from the change of various factors such as sediment and hydrodynamics conditions, pointed out the major reason resulting in the increase on the amount of back-siltation in the middle reach, and discussed engineering measurements to reduce the siltation. The engineering effects of the measures were evaluated after the constructions as well.

Keywords


Yangtze Estuary; North Passage; reason of siltation; measures, engineering effect; evaluation

References


Fan Q.J., 2008. Report: Causes of Back-siltaton of North Passage and analysis on engineering effect of the prososed engineering measure,Yangtze Estuary Waterway Administration Bureau, MOT, China.

Qi D.M, 2007. Report: Preliminary study on the causes of heavily back-siltation of the navigation channel in the North Passage, Shanghai Estuarine and Coastal Scientific Research Center.

Zhu J.F, 2008. Report: Field Survey and Analyzation on the Effect of Dredging Operation Technologyin the Phase III of Yangtze Estuary Deepwater Channel Regulation Works, Yangtze Estuary Waterway Administration Bureau, MOT, China


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