随着城市基础设施建设的快速发展,现代城市基础保障的生命线系统的信息空间化管理和安全隐患分析模拟显得日益迫切.以往的城市生命线管理系统的空间数据与属性数据不是在空间数据库中存储,不能很好地达到共享,也没法实现互操作;对安全隐患与风险评估方面没有考虑空间的关系及对周边的影响,进行有效的综合风险评估、分析与模拟就更加不能实现.要解决这些问题,需要新的管理手段与方法.针对城市生命线系统,以燃气管线为主要研究对象,依据实际的应用需求,利用ArcsDE和SQL Server的空间数据库管理技术,Adobe的Flex地图表达RIA技术,REST方式的SOA服务技术,ArcIMS的地图数据与服务发布等技术,从应用系统的功能和框架结构、管线数据统一模型和燃气管线的风险分析专题进行研究,设计开发了城市燃气系统风险评估应用系统,为燃气风险管理和应急管理提供技术工具.该系统实现了城市生命线的数据的空间化存储、管理、表达及风险分析模拟,具有很好的用户体验,实用性强,共享性高,可扩充性强等优点.%With the rapid development of urban infrastructure construction, urban lifeline system is the basic foundation of modem city.which to be information systems management and security risks of space simulation and analysis become increasingly urgent.Management of urban lifeline systems past,the spatial data and attribute data is not stored in the spatial database, which can not be good shared, thus can not be interoperated.On the safety hazards and risk assessment does not take into account the relationship between space and on the surrounding the impact of effective integrated risk assessment, analysis and simulation can not be achieved even more.To solve these problems, the need for new management tools and methods.Lifeline for the city system to gas pipeline as the main object of study, based on the actual application requirements, the use of space ArcSDE and SQL Server database management technology, Adobe's Flex technology map the expression of RIA, REST mode of SOA services, technology, ArcIMS map data and services, publishing technology, from the application systems and frame structures, pipelines and gas pipelines unified model, risk analysis research topics, design and development of the city gas system risk assessment applications for gas risk management and emergency management tools.The system realizes the lifeline of the city's space-based data storage, management, expression and risk analysis modeling, has a good user experience, practicality, and shared high scalability and strong advantage.
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