Effectiveness of Evacuation in Downward Direction in a Subway Station Using Fire Dynamics Simulator
(0) An effective evacuation in a subway station was studied in the case of a fire. Coincidence with directions of evacuation and smoke-flow toward the ground poses major problems to evacuees in subway stations. Therefore, the evacuation and the smokeflow routes should be divided each other. In this study, the Jungangno subway station with three basement (B3) levels in which a disastrous fire broke out in Daegu, South Korea in 2003 was used as a model station. Influences of smoke, temperature and carbon monoxide (CO) were investigated at evacuation staircases in the subway station set a fire source in B3 floor using Fire Dynamics Simulator. The results showed that smoke density, temperature, and CO concentration at all of staircases increased significantly because smoke flowed through these staircases. A new subway station having a fourth basement (B4) floor was prepared by adding downward evacuation staircases from the B3 floor to the B4 floor. The simulation for the new subway station showed that the smoke density, temperature, and CO concentration scarcely increased at these downward staircases to the B4 floor. This paper concluded that the evacuation in downward direction was more effective than that in upward direction in the subway fire.
subway fire evacuation direction smoke density CO concentration fire dynamics simulator
TSUKAHARA Manabu KOSHIBA Yusuke OHTANI Hideo
Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Kanagawa, Japan
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
489-493
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）