Modeling urban floods and drainage using SWMM and MIKE URBAN: a case study
Modeling urban floods and drainage using SWMM and MIKE URBAN: a case study
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DOI：
10.1007/s11069-016-2455-1
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发表时间：
2016-11-01
期刊：
影响因子：
3.7
通讯作者：
Panda, Ambarnil
中科院分区：
文献类型：
--
作者：
Bisht, Deepak Singh;Chatterjee, Chandranath;Panda, Ambarnil
为了避免雨季频繁发生的洪水灾害，设计一个有效的雨水排水系统已成为当今世界工程师和城市规划师的迫切需要。本案例研究涉及提供一个解决方案，在城市化地区的雨水管理问题。Mann-Kendall和Sen的斜率检验用于使用日降雨量数据（1956-2012年）进行降雨事件的趋势分析，而基于L矩的频率分析方法用于使用日年最大降雨量（1975-2013年）估计印度西孟加拉小城市化地区的设计暴雨。SWMM（雨水管理模型）和MIKE城市模型被用来设计一个有效的排水系统的研究区域。二维MIKE URBAN模型主要用于克服一维SWMM模型在模拟洪水范围和洪水淹没方面的局限性。MIKE URBAN的模型模拟结果显示了2013年7月29日的极端降雨事件。同时设计了一个多功能滞洪池，用于地下水回灌，并在强降雨期间衰减下游端的出流过程线峰值。这项研究提供了一个洞察二维模型的重要性，以处理特定位置的洪水问题。
To avoid the nuisance of frequent flooding during rainy season, designing an efficient stormwater drainage system has become the need of the hour for present world engineers and urban planners. The present case study deals with providing a solution to stormwater management problem in an urbanized area. Mann-Kendall and Sen's slope tests are used to perform the trend analysis of rainfall events using daily rainfall data (1956-2012), while the L-moments-based frequency analysis method is employed to estimate the design storm for a small urbanized area in West Bengal, India, using daily annual maximum rainfall (1975-2013). SWMM (Storm Water Management Model) and MIKE URBAN models are used to design an efficient drainage system for the study area. Two-dimensional (2D) MIKE URBAN model is primarily used to overcome the limitation of one-dimensional (1D) SWMM in simulating flood extent and flood inundation. Model simulation results from MIKE URBAN are shown for an extreme rainfall event of July 29, 2013. A multi-purpose detention pond is also designed for groundwater recharge and attenuating the peak of outflow hydrograph at the downstream end during high-intensity rainfall. This study provides an insight into the importance of 2D model to deal with location-specific flooding problems.