京唐港区20万t级航道横流减控措施研究

Study on Reduction and Control Measures of Cross Flow for Channel Accommodating Ships up to 200,000 DWT at Jingtang Harbor

针对京唐港区20万t级深水航道横流问题,建立平面二维潮流数学模型,研究第四港池南岛形成、现有防波挡沙堤潜堤出水条件下的横流特征,并提出相应的横流减控措施。研究结果表明,采用出水堤与潜堤相结合的型式,并选择合理的潜堤堤顶高程,能有效改善口门航道水流条件,为口门防波挡沙堤优化设计提供科学依据。

In view of the cross flow existing in the deep-water channel for ships up to 200,000 DWT at Jingtang harbor,a 2D plane mathematical model of tidal current is established to study the characteristics of cross flow under the condition of the formation of the south island in the fourth harbor basin and the outlet of the existing submerged dyke.And the corresponding reduction and control measures for cross flow are proposed.The research results show that the flow condition at the channel entrance can be effectively improved by combining the submerged dyke with breakwater,and selecting a reasonable top elevation of submerged dyke.The results will also provide a scientific basis for the optimal design of the breakwater at channel entrance.