城镇燃气管道网格化动态后果评估方法研究

Study on Dynamic Consequences Assessment Method of Urban Gas Pipeline Gridding

介绍城镇埋地燃气管道风险评估的研究现状。从城镇燃气管道事故后果出发,收集经济、人口、社会、政治等影响因素,将时域分析与地域分析相结合,动态评估网格后果。经济影响通过建筑物属性、数量和面积来表征,人口影响通过人口属性和人口密度来表征,社会影响通过社会关注度、市政设施来表征,政治影响通过重大政治活动和重点保驾区域来表征。基于经济、人口、社会和政治方面的影响因素,结合雷达图分析法实现网格化动态后果评估。结合算例进行计算。

The research status of risk assessment of urban buried gas pipeline is introduced.Based on the consequences of urban gas pipeline accidents,the influence factors of economy,population,society and politics and so on are collected,and the time domain analysis and regional analysis are combined to dynamically evaluate the grid security consequences.The economic impact is represented by the building attributes,quantity and area,the population impact is represented by population attribute and population density,the social impact is represented by social attention and municipal facilities,and the political impact is represented by major political activities and key protected areas.Based on the influence factors of economy,population,society and politics,combined with radar chart analysis method,the dynamic consequence assessment of the gridding is realized.The calculation is carried out with an example.