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根据黄河三角洲历年实测的深度,归化至同一的投影,比例和深度基准面,计算深度变化,看到:黄河三角洲有冲有淤,黄河行水河口淤,停水故道冲,以淤为主;一般淤进0.2公里/年.黄河河口流路是决定油港港址的关键,尽管有河口流路安排这个不定因素.根据无潮点流速大,有利于泥沙输送;近代黄河泥沙已把五号桩凸出于渤海;五号桩外水深,且处油田高产区,油港以五号桩为理想位置。在黄河水土保持和下游泥沙输往陆地还未收到显著效果的情况下,油港需予留适量的距离作为备淤区。若挖泥维持航道的经济效果可行,也可缩短港区与海岸的距离.
According to the actual measured depth of the Yellow River Delta over the years, naturalized to the same projection, the proportion and the depth of the reference surface to calculate the depth of change, see: the Yellow River Delta has red silt, the Yellow River water silt, flood without water, silt-based ; Silt in general 0.2 km / year. Yellow River estuary flow channel is the key to determine the port of Hong Kong, although there are estuaries flow arrangement of this indefinite factor, according to the tidal velocity is large, is conducive to sediment transport; modern Yellow River sediment has The fifth pile protruding from the Bohai Sea; Fifth pile outside the water depth, and the high-yielding oilfield, oil port to the fifth pile as the ideal position. In the Yellow River water and soil conservation and downstream sediment transport to the land has not yet received significant effects of the case, the oil harbor should be left a proper amount of distance as a reserve area. If dredging maintains the economic benefits of the waterway, it can also shorten the distance between the port and the coast.