【正文】 s geological environment change is fierce. In the epicontinental sea area39。07′04″E Southeast spot： 38176。 The First Ports Corporation： Berth length 776 m, 2ton berths 3, water depth of m, 1ton berths 1, water depth of meters. The Second Ports Corporation： Berth length 1951 m, 2ton berths 2, water depth of m, 1ton berths 7, front water depth m 8 The Third Ports Corporation： Berth length 1064 m, 3,000ton passenger berths 2, water depth of m, 3,000 ~ 6,000 ton cargo berths 7, front ~ meters depth The forth Ports Corporation： Berth length 912 m, 1 5ton berths, advanced meters water depth of 9 ~ The fifth Ports Corporation： Berth length 996 m, 1ton berths, water depth of 9 m. The sixth Ports Corporation： Berth length 1314 m, 2ton berths 6, front water depth m. Sinor Terminal： berths 1, depth of meters forward. Orient Container Terminal： Is the largest container terminal in China, with eight berths, designed annual handling capacity of 1 million TEU. 15 units with crane (the largest extended from 45 meters), field 22 sets the bridge. Orient Container Company also two 10,000 t bulk cargo berths. South Development Company： Berth length 944 meters, tons of refined oil berths 3, 5ton crude oil berth 1. 50 thousand tons and tonclass deep water berths designed annual handling capacity of coal from 1000 to 30 million tons. Storage yard and the ability Tianjin Port has good facilities, advanced technology and management practices of all million square meters of permanent library field, one can store million tons of various goods, storage containers 31386TEU, including storage of 20 million square meters, capacity 140,000 cubic meters . Library field, including various types of cylindrical tank 86 thousand cubic meters, could save 60,000 tons bulk grain ship 53,000 cubic meters of fuel oil tank supply panies can keep oil 30,420 tons。因此 ,更加深入地認(rèn)識(shí)這些問(wèn)題 ,必將對(duì)提出相對(duì)合理的開(kāi)發(fā)利用建議產(chǎn)生極為積極的影響 . Brief Introduction Of TIANJIN PORT when port opened in 1952, the Tianjin Port at that time had 2 berths. The natural sea area condition unsatisfactory, Tianjin Port is not similar to the deepsea trench which has in Caofeidian, however, this piece of shallow seas and tidelands have already dugged the meters depth now, it bees the first big port in the north， and the national third big port, the world’s fifth big port. Description of TIANJIN port 1,Natural conditions: (1)Wind conditions： In spring and in autumn mostly is Southwest wind, in summer is the southeast wind, much as the northwest wind in winter, the often winds is the southwest and the strong wind is the average speed of thewind is m / s. (2)Precipitation： The average rainfall is 600 mm every year, the rainfall is concentrated on July and August , accounting for more than half of annual precipitation. Fog conditions: fog days ， on average is days, more mon in autumn and winter (3)temperature： On average ， the temperature is 12 ℃ in each year, the maximum temperature is ℃ , the extreme minimum temperature is ℃ . Ice conditions: From December to the next February is the freeze period, ice thickness near the coast generally 520 mm, but it usually does not affect the navigation 2,Hydrology： (1)Tidal： 6 It is an irregular halfday tide, high and low tide occurs 2 times per month, with dates ranging from the phenomenon of a significant maximum water level is m, the lowest low value is m, maximum tidal range is m. (2)Tidal current： The rising tide speed of flow is meters/second, the ebb tide speed of flow is meters/second, the tidal current flows is parallel basically with the route. (3)Wave： The Tianjin Port is influence by the season wind, the winter is in vogue the le