淮河干流峡山口至蚌埠段行洪区调整与河道整治研究

Research on adjustment of flood diversion areas and river harnessing from Xiashankou to Bengbu of Huaihe River

淮河干流峡山口至蚌埠段河势复杂,泄流能力不足,规划整治工程方案多。本文针对该段行洪区调整与河道整治方案,分析了河道基本特性,开展了河工模型试验研究和二维水动力数值计算。模型采用2003、2005、2007年实测洪水资料进行率定与验证,具有较高精度,可以为河道整治提供研究手段。利用模型对河道不同整治方案进行了效果对比分析,对行洪区调度方案进行了优化,并指出需要治理的局部阻水河段。

The river regime from Xiashankou to Bengbu of the main stream of the Huaihe River is complicat ed. The flood carrying capacity is insufficient, for which a lot of treatment project plans has been presented. In this paper, according to adjustment plans of the flood diversion areas and river harnessing, the basic river characteristics are analyzed, the river physical model experiment anti 2 D hydrodynamic numerical calcula tion are carried out. These models could provide research method for the river treatment scheme, which are verified with measured flood data in 2003, 2005 and 2007. By means of these models the different river treat ment schemes and optimal operation scheme of the flood diversion area are calculated, and the need for har nessing of local water blocking river reach is pointed out.