地下鉄駅舎火災における煙流動性状―数値流体解析による島式ホーム駅舎の煙流動性状の再現と安全対策の検討―
Smoke Movement Characteristics in Subway Stations - Fire safety Assessment of Center Platform Stations by Numerical Studies -

Naomi OKAZAWA, Yuji HASEMI, Shuji MORIYAMA, Dong-gun NAM, Wenting DING
2007 Bulletin of Japan Association for Fire Science and Engineering  
in Tokyo, smoke movement experiments were conducted in actual subway stations currently in service. Although this experiment was limited in time, intensity and contents, essential data was collected to tune and examine the validity of the numerical calculations. The experimental results suggested that the smoke movement is highly dependent on the air flow blowing down the stairway and the opening and closing conditions of the shutters. The reasonable agreement between the experimental data and
more » ... erimental data and the prediction shows that the CFD model can reproduce the smoke−air mixing which is caused by the air flow through the stairways connecting the platform and the concourse. The CFD model will be suitable to reproduce the specific smoke movements in subway stations. Smoke spread at the event of more plausible severer fires in more complicated conditions is discussed to grasp fire safety levels and to propose appropriate operation of shutters and smoke extraction systems. Abstract
doi:10.11196/kasai.57.1_17 fatcat:xnnkmk2wrvbvva4mqyepqygx7m