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| Optimization Study on the Evacuation Mode for the Middle Train Compartment Fire of Single - track Tunnels |
| LIU Song - tao1，WEI Wen - bin2，OU Chen1 |
| (1. Institute of Building Fire Research， China Academy of Building Research， Beijing 100013， China; 2. School of Resources and Safety Engineering，China University of Ming and Technology ( Beijing)，Beijing 100083，China) |
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Abstract Research purposes : This paper focused on the single - track high - speed railway tunnels，based on several reasonable assumptions，theoretical evacuation model was established and the optimal evacuation path was computed. By using Pathfinder numerical simulation，numerical evacuation model of single - track high - speed railway tunnels was established，and all the evacuation paths of different train locations were analyzed，to get the optimal evacuation path. Research conclusions :( 1) Five kinds of evacuation path for the middle train compartment fire of single - track tunnels exist. (2) The optimal evacuation time of each path arranged like a line or a “ V"， and the time nodes are namely 27 m，47 m，69 m and 100 m. ( 3 ) The result of Pathfinder numerical simulation analysis was highly consistent with the theoretical evacuation model，while the highest relative tolerance was 15. 48%，and the lowest was 1.48%. (4) The research conclusions may provide theoretical basis for the evacuation design of high - speed railway tunnels，which will help to shorten evacuation time and make great difference on reducing casualties.
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Received: 10 September 2015
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2016, Vol. 33 
