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基于动态贝叶斯网络的非常规突发灾害事故情景推演

DOI: 10.3969/j.issn.1005-3026.2015.06.030, PP. 897-902

Keywords: 情景应对,非常规突发灾害事故,演变路径,动态贝叶斯网络,情景推演

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Abstract:

针对非常规突发灾害事故演变路径不清晰,演变过程及发展态势复杂,应急决策主体在应急救援过程中很难做出正确决策的现状,在分析非常规突发灾害事故情景演变规律的基础上,基于情景状态(S)、处置目标(T)、处置措施(M)和自身演变(E)四个要素分析了非常规突发灾害事故情景演变的路径,基于动态贝叶斯构建了非常规突发灾害事故动态情景网络,并利用联合概率公式进行相应节点变量的状态概率计算,实现了非常规突发灾害事故的关键情景推演.以大连“7·16”油库爆炸火灾事故为例,演示了非常规突发灾害事故的情景推演流程及关键技术,并对情景推演的结果进行了分析.推演结果表明:事故按输油管线爆炸→油罐爆炸起火→原油泄漏、污染海域的路径演变;其中,输油管线爆炸出现的概率为90.2%,T103罐爆炸起火出现的概率为84.1%,原油泄漏、污染海域出现的概率为80.3%,推演结果与实际灾害事故的情景发展状态基本一致,证明了该方法的合理性和可行性.

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