【摘要】 鉴于工程所属河段水流、河床变化的复杂性,采用平面二维水沙数值模型,对红谷隧道赣江段河床冲淤进行了模拟分析。计算分析各种流量工况下隧道线上下游流场分布和河床冲刷情况;针对最不利水文工况时的工程河段水文条件,开展隧道断面河床最大冲刷深度数值模拟研究,结果可为赣江红谷隧道河段工程设计提供参考。更多还原

【Abstract】 Because of the complexity of the flow and riverbed changing in the engineering section, A 2D water- sediment mathematical modeling is adopted to simulate the fluvial processes in the Honggu tunnel Ganjiang river section. Various traffic conditions flow field distribution and the riverbed scour situation in upstream and downstream of the tunnel are calculated and analysed. In the most unfavorable hydrological conditions, carrying out numerical simulation of maximum scour depth tunnel profile river bed. And the calculated result can provide scientific basis for the practical design.更多还原