中文摘要：

针对渤海湾曹妃甸海域波浪、潮流、泥沙及海床演变特点，应用波流共同作用下二维泥沙数学模型研究港区开发方案。2006年冬季和夏季大、小潮潮流泥沙验证表明，该海域潮位及15条同步垂线流速、流向、含沙量过程的计算值与实测值吻合良好，并进行了矿石码头港池前沿海域在潮流与波浪共同作用下悬沙引起的冲淤验证，计算的冲淤厚度及其分布趋势与实测值比较接近。在此基础上，研究了曹妃甸前岛后陆的港区围垦方案对水动力环境的影响问题，包括该工程引起的曹妃甸甸头以南深槽、老龙沟深槽及各港池的流速变化及底床的冲淤变形等。

英文摘要：

With regard to the characteristics of waves, tidal currents, sediment and seabed evolution in Caofeidian sea area in Bohai Bay, a 2D sediment mathematical model under the co-action of waves and tidal currents is employed to study the development schemes. The verification of spring and neap tidal currents and sediment in winter of ：2006 shows that the calculated values of tidal stages as well as flow velocities, flow directions and sediment concentration of 15 synchronous vertical lines are in good agreement with the measured ones. The deposition and erosion of the sea area in front of Caofeidian ore dock induced by suspended load under the co-action of tidal currents and waves are verified, and the calculated depths of deposition and erosion as well as their distribution are approximate to the measured ones. On such a basis, the effect of Caofeidian harbor reclamation scheme, that is, island in the front and land in the back, on hydrodynamic and sediment environment is studied, including basins change of fl as well as th ow velocities of the deep channel at the south side of Caofeidian foreland, Laolonggou and various harbor e change of the deposition and erosion of the bed induced by the project.