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拟建的武汉市黄家湖长江大桥位于长江中游武汉河段军山长江大桥与白沙洲长江大桥之间。为研究大桥建设对桥区河段水流条件的影响,特别是拟建大桥对防洪以及航运的影响,通过定床物理模型试验的手段对不同桥位下的桥型方案进行了试验研究,揭示了不同特征流量条件下的水位、流速、流向以及最大单宽流量的变化规律。同时对建桥后河势稳定进行了分析,可为防洪评价和通航论证提供理论依据。
The proposed Huangjiahu Yangtze River Bridge in Wuhan City is located in the middle reach of the Yangtze River between the Juyan Yangtze River Bridge and the Baishazhou Yangtze River Bridge. In order to study the influence of bridge construction on water flow conditions in Qiaoxia reach, especially the influence of the proposed bridge on flood control and shipping, the bridge type schemes under different bridge positions were studied through the physical model test of fixed bed. Variation of water level, flow velocity, flow direction and maximum single-width flow under different characteristic flow conditions. At the same time, the analysis of the river stability after the bridge construction can provide a theoretical basis for flood control evaluation and navigation demonstration.