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该文在分析风浪与河口滩槽泥沙运动、河口滩槽演变和航道骤淤等研究现状的基础上,通过建立波流共同作用下的三维悬沙数学模型,以珠江口高栏港区深水航道为例,探讨大风天泥沙运动和航道骤淤规律。研究结果表明:计算值与实测值基本吻合,并预报了50年一遇情况下航道的骤淤情况。从大风浪影响滩槽变化的角度,提出了一种预报海岸河口淤积以及骤淤的一种有效途径。
Based on the analysis of the research status of the sediment movement in storms and tidal flats, the evolution of estuarine channel and the sedimentation of the channel, the three-dimensional suspended sediment mathematical model under the combined action of wave and flow was established, Waterway as an example, to discuss the windy day sediment movement and channel sedimentation rules. The results show that the calculated values are in good agreement with the measured values, and the sudden siltation of the waterway under the one-year situation of 50 years is predicted. From the perspective of the influence of big storm on beach trough, an effective way to predict siltation and sedimentation in coastal estuaries is proposed.