渤海湾典型岸段近岸过程研究

Research on the Nearshore Process of the Typical Coast of the Bohai Bay

渤海湾是我国典型的平原淤泥质海岸 ,中国最大的两个人工港———天津新港和河北黄骅港 ,在建设过程中曾先后遇到细颗粒泥沙运移与如何减轻港口、航道回淤量等工程泥沙问题。文章以渤海湾西南部大口河沿岸海域现场观测资料为基础 ,通过近岸水动力、泥沙输移、岸滩沉积过程及冲淤演变等综合分析 ,为平原淤泥质海岸“浅水深用”

Since the coast of the Bohai Bay is a typical plain silty one,the problems about engineering sediments,such as fine sediment transportation and how to reduce silting amount for the port and waterway,have come across one after another in the construction of the Tianjin Port and the Huanghua Port of Hebei Province,the two largest artificial ports in China.On the basis of the data observed in situ in the coastal area of the Dakou River in the southwestern Bohai Bay,this paper analyzes comprehensively hydrodynamics,sediment trans\|portation,sedimentation of the coastal beach and alluvial and silting evolution,which provide a theoretical basis for the strategic decision of “the shallow water used as the deep water”in the plain silty coast.