CAJ | 학술논문

为了研究出口前障碍墙对人员疏散的影响，采用数值模拟的方法分析了不同人员密度以及不同障碍墙设置条件下的人员疏散过程。结果表明，障碍墙的存在增加了疏散距离，从而增加人员疏散时间，且人员密度越大，疏散时间的延滞越严重；障碍墙与出口的距离不宜小于出口宽度，两者距离小于出口宽度时会严重降低出口的流量系数，增加人员疏散时间，两者距离达到出口宽度时对人员疏散的影响较小；障碍墙的长度不宜超过出口宽度，长度不超过出口宽度的障碍墙对出口的流量系数影响较小，长度大于出口宽度的障碍墙严重降低出口的流量系数，增加疏散时间。随着出口宽度增加，疏散时间减少，障碍墙会降低出口的有效宽度。研究结果为实际工程设计及应用提供了一定的参考依据。
위료연구출구전장애장대인원소산적영향，채용수치모의적방법분석료불동인원밀도이급불동장애장설치조건하적인원소산과정。결과표명，장애장적존재증가료소산거리，종이증가인원소산시간，차인원밀도월대，소산시간적연체월엄중；장애장여출구적거리불의소우출구관도，량자거리소우출구관도시회엄중강저출구적류량계수，증가인원소산시간，량자거리체도출구관도시대인원소산적영향교소；장애장적장도불의초과출구관도，장도불초과출구관도적장애장대출구적류량계수영향교소，장도대우출구관도적장애장엄중강저출구적류량계수，증가소산시간。수착출구관도증가，소산시간감소，장애장회강저출구적유효관도。연구결과위실제공정설계급응용제공료일정적삼고의거。
In order to research the effect of obstacle wall before the exit on pedestrian evacuation , the evacuation processes of different pedestrian densities and different setting conditions of obstacle wall were analysised by numeri -cal simulation .The results showed the evacuation distance increases by the presence of obstacle wall , which leads to the increase of evacuation time , and the evacuation time delays more when the pedestrian density is higher;it is better that the distance between the obstacle wall and exit is less than the width of exit , the distance which is less than the width of exit reduces the flow coefficient seriously and increases the evacuation time , the distance has little effect on the evacuation when it reached the width of exit;it is better that the length of the obstacle wall is less than the width of exit , because the flow coefficient decreases less in this condition , it reduces the flow coefficient seri-ously and increases the evacuation time when the length of the obstacle wall is more than the width of exit .With the increasing of exit width , the evacuation time reduces , and obstacle wall decreases the effective width of the exit . The results of the research provide reference for engineering design and application .