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一、引言中心城市都有一定数量的生命线系统,它们可按如下分类: 能源:电、天然气、液体燃料; 水:饮用水、洪水、污水; 运输:公路、铁路、机场、港口; 通信:电话、电报、无线电、邮电。大多数生命线系统包括:源(如发电厂、水厂等),主要传输线,贮藏库,集散系统。地震对城市经济所造成的损失约50％为生命线引起。震后经验表明,生命线系统的严重失效能造成整个城市瘫痪。因此,能否迅速恢复受到破坏的生命线系统对于一个现代化中心城市的正
I. INTRODUCTION The central cities have a certain number of lifeline systems. They can be classified as follows: Energy sources: electricity, natural gas, liquid fuels; water: drinking water, floodwater, sewage; transport: roads, railways, airports, ports; Telegraph, radio, post and telecommunications. Most lifeline systems include: sources (such as power plants, water plants, etc.), major transmission lines, storage, distribution systems. About 50% of the damage caused by the earthquake to the urban economy is caused by the Lifeline. Experience after the earthquake showed that the serious failure of the lifeline system can paralyze the entire city. Therefore, the ability to quickly restore the damaged lifeline system to a modern central city