一、二维水动力模型在码头方案优选中的应用

Comparison of Different Pier Construction Schemes Based on One and Two Dimensional Numerical Models

为研究不同建设方案下的码头造成的防洪影响,并比较方案的优劣,以深圳东宝河口的拟建码头为研究对象,联合平面一维和二维水动力模型进行两种不同方案建设前后的模拟计算,并分析评价工程建设对水位壅高、水流形态、流速流向等的影响,经比选确定最优方案。计算结果表明项目建设后水位壅高程度较低,而码头内部流速减少较大,对整个河道影响甚微,项目建设对河道影响较小,可为码头建设提供防洪分析及方案比较提供参考。

In order to analyze the flood control influence from different construction schemes and compare the advantages and disadvantages of the schemes,with the proposed pier in Shenzhen Dongbao River as the research object,one and two dimensional hydrodynamic models were applied to the analyses of two different construction schemes,and the influence on water level,flow pattern,flow velocity,etc. from the construction of pier was analyzed. As a result,it shows that the water level arise little if the construction of the pier done,but the flow velocity during the pier would decreased greatly,at the same time flow velocity of the entire river changed little. It could come to the conclusion that the impact of the project construction on the river channel is quite small. In the case of the two construction options,the first proposal is recommended. This paper might can provide reference for flood control analysis and scheme comparison for pier construction.