损失驱动的城市外洪内涝物资精细化配置研究

Research on the Refined Allocation of Materials for Urban Flood and Waterlogging Driven by Loss

针对城市洪涝灾害物资的合理配置问题,提出了损失驱动的需求紧迫程度计算方法,并建立了基于洪涝灾害推演结果的防洪防涝物资精细化优化配置框架;以郑州市为研究对象,采用多目标遗传算法计算了百年一遇降雨和河流洪水组合致灾情景下的配置结果,探讨了所提出的损失驱动法与等优先级、TOPIS和聚类分级法在配置效果上的差异.研究结果表明:损失驱动的物资配置框架实现了沙袋和排水设备的精细化配置,配置结果的损失比其他方法低34.97%~56.58%,提高了有限物资配置效果;表明损失驱动法可更好地反映承灾体实际需求,该研究结果可为城市洪涝灾害精细化防控提供参考.

In response to the rational allocation of materials for urban flood and waterlogging,a lossdriven demand urgency calculation method was proposed,and a refined optimization configuration framework of materials for urban flood and waterlogging control was established.Taking Zhengzhou City as a study area,the multi-objective genetic algorithm was used to calculate the configuration results under the‘once in one hundred years'rainfall and flood return period,and compared the differences in configuration performance between the proposed loss-driven method and equal priority,TOPIS,and clustering classification methods.The results show that the proposed loss-driven material allocation framework achieves refined configuration of sandbags and drainage equipment,with a configuration result loss of 34.97%~56.58%lower than other methods,improving the effectiveness of limited material allocation.These results indicate that the loss-driven method approach can better reflect the actual needs of hazard bearing bodies.The research results can provide reference for the refined prevention and control of urban flood and waterlogging.