摘要
建立基于GIS(地理信息系统)的重大危险源风险管理辅助决策软件系统,包括数据管理、风险分析和事故应急救援辅助决策3个子系统。根据相关规范设计了数据结构,通过数据普查建立城市级重大危险源信息数据库;考虑模型计算精度和效率,建立事故后果模拟评价模型库,结合GIS技术实现重大危险源风险评价功能;在GIS平台上展现事故场景和周边环境,完成人员撤离路径选择、应急救援资源的检索和最短路径查找等操作,有力地辅助事故应急救援决策。通过液化天然气罐区泄漏事故的实例演示了系统各项功能。该系统目前已应用于某副省级城市的重大危险源监管工作,系统的实用性得到了实际验证。
This paper describes studies on a geographic information system(GIS)-based assistant decision-making system which was build up by three sub-systems including data management, risk analysis, and assistant decision-making for emergency rescue. The data management could be operated by setting up city-level major hazards installation database by data survey according to the designed data structure under some related principles; The risk analysis could perform high risk evaluation by combining GIS and post-accidents results simulation models database, which was made by considering both calculation accuracy and efficiency; The assistant decision-making could be carried out easily on GIS platform by showing up accident scene and neighbouring environment, selecting an option for evacuating routes, searching for emergency-aid sources, and looking for the shortest route for escape. Meanwhile, this study demonstrated all the functions of this system by an actual LNG leaking accident which happened in a LNG tank area. This system has been already applied in major hazards installation supervising in a sub-provincial city, where this system is proved to be significantly practical and helpful.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2007年第7期115-117,共3页
Natural Gas Industry
基金
江苏省高校"青蓝工程"
江苏省高级自然研究计划指导性项目
南京工业大学博士学位论文创新基金(编号:BSCX200612)资助
关键词
重大危险源
风险分析
辅助
决策
系统
救援
地理信息系统
major hazard installation, risk analysis, assistant, policy, system, aid, GIS (geographic information system)