论文部分内容阅读
公共建筑内随机分布的障碍物可能对突发事件下密集人群疏散过程中人员速度、路径选择行为产生影响。考虑较为密集人群疏散过程与宏观流体流动过程的相似性,用连续性方程描述人群密度变化过程,结合障碍物对人员运动行为的影响,建立了考虑障碍物影响的人员疏散宏观模型。采用该模型计算重现了疏散出口附近的高密度人群拱形和椭圆形分布,定量分析了障碍物以不同概率分布于建筑内不同位置时对疏散过程中人员密度演化以及完成疏散所需时间的影响。
Randomly distributed obstacles in public buildings may have an impact on personnel speed and route selection during the evacuation of densely populated populations under emergencies. Considering the similarities between evacuation process and macrofluid flow in more densely populated population, the continuity equation is used to describe the process of population density change. Combined with the influence of obstacles on the movement of people, a macroscopic model of evacuation considering the influence of obstacles is established. The model was used to reconstruct the arcuate and elliptic distributions of high-density people in the vicinity of evacuation exit. Quantitative analysis of the evacuation of personnel density and the time needed to complete the evacuation was carried out quantitatively when obstacles were distributed at different positions in buildings with different probabilities influences.