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基于SWMM模型和Digital Water模拟系统构建了城市排水管网和地面内涝耦合模型,模型综合考虑了城市建筑物、道路等复杂城市水文条件,实现了地下一维管网与地表积水过程的动态模拟。该模型可以计算降雨引起的产汇流和管道排水情况,并在排水管网溢流或区域积水时,模拟超载水量在地面的流动、汇集和退水过程。在基础数据较为充分的基础上,该模型可以应用于城市排水规划、内涝灾害预警和评估等管理工作,减少城市内涝灾害损失。
Based on the SWMM model and Digital Water simulation system, a coupled model of urban drainage network and surface waterlogging was constructed. The model comprehensively considered the hydrological conditions of complex urban such as urban buildings and roads, and realized the dynamic simulation of underground one-dimensional pipe network and surface water accumulation process . The model can calculate the runoff and drainage of pipelines caused by rainfall, and simulate the flow, collection and return of overloaded water on the ground when the drainage network overflows or accumulates water. Based on the more sufficient basic data, the model can be applied to the management of urban drainage planning, early warning and assessment of waterlogging disasters and the reduction of urban waterlogging disaster losses.