考虑受灾点差异性的应急物资配送方案研究

为提升应急救援的效益,针对应急物资储备库的储备量小于受灾点需求量的情况,考虑受灾点受灾程度的差异,运用B型关联度—TOPSIS方法确定各个受灾点的需求紧迫程度,将需求满足率最大化作为目标建立基于公平性的应急物资配送模型。以芦山地震为算例,采用NSGA-Ⅱ算法来验证模型的有效性。结果显示:受灾点最小满足率为87.19%,紧缺程度最小为30.05 t,紧迫程度最大的芦山县满足率达到99.7%。证明当应急物资供应量小于受灾点需求量时,可按照紧迫程度的顺序对物资进行分配,并达到一定的满足率,有效实行物资分配。

Research on emergency material distribution considering differences in disaster areas

In order to improve the efficiency of emergency rescue,the reserve amount of the emergency materials reserve is smaller than the demand of the disaster-stricken point,and considering the difference in the degree of disaster at the disaster site,the B-type correlation degree-TOPSIS method is used to determine the urgentness of each disaster-affected point.A fairness-based emergency material distribution model is established with the goal of maximizing demand satisfaction rate.Taking the Lushan earthquake as an example,the NSGA-II algorithm is used to verify the validity of the model.The result shows that the minimum satisfaction rate of the disaster-stricken point is 87.19%,the minimum shortage is 30.05 tons,and the satisfaction rate of Lushan County with the most urgent degree is 99.7%.It proves that when the supply of emergency materials is less than the demand of the disaster-stricken points,the materials are allocated according to the order of urgency,and a certain satisfaction rate is met,and the material distribution can be effectively carried out.