| 摘要: |
| 山东滨州港海港港区于2015年11月经历一次大风骤淤过程，造成原有3万吨级航道消失，想要建设和发展滨州港港区，治理航道的骤淤是关键。文章基于三维潮流泥沙模型FVCOM以及波浪模型SWAN，考虑水动力和泥沙间的相互作用，建立了基于新型三维辐射应力的三维水沙模型，依据2014年全潮水文观测资料对此三维水沙模型进行了潮流场、波浪场以及悬沙场的模拟和分析，验证了此新型三维水沙模型的可靠性，并计算了大风条件下现状航道淤积量和延长出水堤堤头位置至-7.5米方案和-9.0米方案的淤积量，分析了导致航道淤积的原因。经过对模拟结果的对比论证，得出出水堤延伸越远，航道减淤量越大，但出水堤继续延伸后单宽减淤量会逐渐降低的结论。本研究为航道淤积及减淤措施等提供了参考。 |
| 关键词: 滨州港 潮流泥沙 骤淤 FVCOM SWAN |
| DOI： |
| 分类号:U 651 ? ?????????? |
| 基金项目:国家重点研发计划 |
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| Application of a three-dimensional water-sediment model in siltation reduction measures in channels |
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jizezhou1, rentengfei2, zhangjinfeng2, zhangjunjian1
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1.CCCC First Harbor Consultants Limited Company;2.Tianjin University
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| Abstract: |
| The harbor area of Binzhou Port in Shandong Province experienced a sudden siltation process of strong wind in November 2015, resulting in the disappearance of the original 30,000-ton channel. In order to build and develop Binzhou Port area, the key is to control the sudden siltation in the channel. Based on the three-dimensional tidal current and sediment model FVCOM and the wave model SWAN, considering the interaction between hydrodynamics and sediment, a three-dimensional water-sediment model based on a new three-dimensional radiation stress is established. Based on the full tide hydrological observation data in 2014, the tidal current field, wave field and suspended sediment field are simulated and analyzed, and the reliability of the new three-dimensional water-sediment model is verified. Under the condition of strong wind, the siltation amount of the current channel and the schemes of extending the outlet breakwater head to -7.5 meters and -9.0 meters are calculated, and the causes of channel siltation are analyzed. Through the comparative demonstration of the simulation results, it is concluded that the farther the outlet breakwater extends, the greater the silt reduction of the channel, but the silt reduction per unit width will gradually decrease after the outlet breakwater continues to extend. This study provides a reference for channel siltation and siltation reduction measures. |
| Key words: Binzhou Port tide and sediment sudden siltation FVCOM SWAN |
