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考虑毒性负荷及路径长度的应急疏散路径规划 被引量:3
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作者 康顺旺 刘刚 《测绘科学技术学报》 北大核心 2020年第6期652-658,共7页
针对危化品泄漏事故,利用GIS理论方法构建事故区域的疏散网络拓扑模型,选择高斯烟羽模型进行气体扩散模拟;并采用分组疏散策略提出以总疏散距离与毒性负荷的加权和最小为优化目标的应急疏散路径规划模型。以液氯泄漏事故为例,对危化品... 针对危化品泄漏事故,利用GIS理论方法构建事故区域的疏散网络拓扑模型,选择高斯烟羽模型进行气体扩散模拟;并采用分组疏散策略提出以总疏散距离与毒性负荷的加权和最小为优化目标的应急疏散路径规划模型。以液氯泄漏事故为例,对危化品泄漏扩散情形进行模拟,并划分事故影响区域确定受灾居民点及安全的避难场所;将该模型与基于距离最短算法和基于时间最短算法的疏散路径规划结果进行对比,验证模型的有效性。结果表明,该模型能够保证整体的疏散效率,且疏散人员在整个过程中承受较低的受灾风险,可为决策者制定疏散方案和受灾群众快速安全疏散提供决策支撑。 展开更多
关键词 危化品泄漏 高斯烟羽模型 分组疏散策略 毒性负荷 应急疏散路径规划
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Optimization of Grouping Evacuation Strategy in High-rise Building Fires Based on Graph Theory and Computational Experiments 被引量:5
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作者 Yuling Hu Xiwei Liu 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2018年第6期1104-1112,共9页
It is difficult to rescue people from outside, and emergency evacuation is still a main measure to decrease casualties in high-rise building fires. To improve evacuation efficiency, a valid and easily manipulated grou... It is difficult to rescue people from outside, and emergency evacuation is still a main measure to decrease casualties in high-rise building fires. To improve evacuation efficiency, a valid and easily manipulated grouping evacuation strategy is proposed. Occupants escape in groups according to the shortest evacuation route is determined by graph theory. In order to evaluate and find the optimal grouping, computational experiments are performed to design and simulate the evacuation processes. A case study shown the application in detail and quantitative research conclusions is obtained. The thoughts and approaches of this study can be used to guide actual high-rise building evacuation processes in future. 展开更多
关键词 Computational experiments grouping evacuation graph theory high-rise building fire management strategies
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