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为准确模拟城市雨洪管网排涝过程,该文以某典型试验排水区域为例,运用ArcGIS技术建立城市雨洪模型,融合DEM、三维管线、城市河道模型,建立了排水管网系统,利用该系统与真实河网水动力进行耦合,最终建立符合城市防洪排涝的雨洪模型。通过与SWMM模型就雨洪不同阶段进行对比可知,该模型在满足可行性的同时,在实现效果上有进一步的提升,具有较强的实践意义与应用价值。
In order to accurately simulate the drainage process of urban rain flood network, this paper takes a typical experimental drainage area as an example, establishes a model of urban storm flood using ArcGIS technology, integrates DEM, three-dimensional pipeline and urban river model and establishes a drainage network system. The system is coupled with the actual river network hydrodynamics, finally establishing a rain-flood model in line with urban flood control and drainage. By comparing with the SWMM model on different stages of rainstaining, it can be seen that this model has further improvement in its realization effect while satisfying the feasibility and has strong practical significance and application value.