SEDIMENT TREATMENT RESEARCH OF PORT AND WATERWAY ENGINEERING ON SILT COAST-SEDIMENT RESEARCH SUMMARY OF TIANJIN PORT

Tianjin Port is a typical silt coast port, sediment there is very thin, with a median size of d(50)=0.006mm, and the beach surface is gentle, approximately 1/2000, it was once a world-famous serious back silting port. Since 1952 the port was put into operation, through more than half century's construction and research, it has been gradually regulated to a light back silting port. This article has analyzed the research results of sediment treatment of Tianjin port in different construction time. According to long-term actual measures on hydrology, sediment etc, with many kinds of methods to conduct a long-term track type experimental study to the Tianjin port, such as original view analysis, physical model, mathematical model, water trough experiment, neutron traces, remote sensing analysis and so on, the article has clarified the sediment origin of Tianjin port area; sediment movement shape; sediment distribution law in the port and channel.