Study On Navigation Specification Of The Sea-route With 250 000 Tons' Level In Tianjin Port

The Tianjin port is located in the centre of the link, Bohai port-group, situated at northeast of Huabei plain, holding the balance in the industrial park of Beijing-Tianjin-Tangshan.It's the largest comprehensive foreign trade port in north,our countries's hinge and largest got-up harbor.Besides,it's one of bridgeheads of mainland,Asia-Europe.Tianjin port shoulder the role of inside-foreign trade for Beijing,cities in Huabei and northwest China. It is an important port in our country, giving priority to grocery and containers.The throughput of Tianjin port is growing with large scale recently,especially large amounts bulk cargo and containers.We need the sea-route of 250 000 tons' level to sustain the trend of ships'large-scale and economical growth of Bohai area.The text carries on the key research to elements which relate navigation ability of the sea-route,width and depth,in the function of actual investigation to Tianjin port, considering present standards of domestic and foreign.Then we establish Navigation Specification for Tianjin port's sea-route of 250 000 tons' level.The text caculates the width and depth of the sea-route with mathematical models through selecting typical ships' size.We make use of standards of China,Canada and Japan to caculate the width;we make use of standards of EMPA and the Setu inland sea, etc,to caculate the depth.Then we use navigation simulator to demonstrate the results we gained.Finally,we gain Navigation Specification of the sea-route with 250 000 tons' level in Tianjin port.The text establishes Navigation Specification of the sea-route with 250 000 tons' level in Tianjin port through associating theory with reality, according to Tianjin port's actual hydrological data and the characteristic of sea-route,effectually solving the conflict between economical development and ships' secure navigation.