China Safety Science Journal ›› 2021, Vol. 31 ›› Issue (9): 184-190.doi: 10.16265/j.cnki.issn1003-3033.2021.09.025

• Emergency technology and management • Previous Articles     Next Articles

Discussion on structural type of emergency rescue station without evacuation conditions outside tunnels

LI Chunhui1,2, WANG Mingnian1,2, GUO Xiaohan1,2, LIU Kerui1,2, YU Li1,2   

  1. 1 School of Civil Engineering, Southwest Jiaotong University, Chengdu Sichuan 610031, China;
    2 Ministry of Education Key Laboratory of Transportation Tunnel Engineering, Southwest Jiaotong University, Chengdu Sichuan 610031, China
  • Received:2021-06-20 Revised:2021-08-16 Online:2021-09-28 Published:2022-03-28

Abstract: As current emergency rescue station structure cannot meet requirements of evacuation and rescue, and there is no evacuation conditions outside tunnels, a new structural type of rescue station is proposed. With a railway tunnel project as an example, numerical simulation was conducted by using FDS5.0 software to analyze smoke diffusion process of burning trains under influence of train fire position, tunnel longitudinal slope and longitudinal ventilation wind speed. Then, relevant structure parameters of emergency rescue station were determined. The results show that the new structure shall include three parts, evacuation area, isolation region and avoidance rescue area. Longitudinal wind speed has the greatest influence on length of smoke diffusion, followed by slope, and finally train fire location. It is recommended that length of isolation zone on the downhill side is set at 1 350 m, and that on uphill side at 1 450 m.

Key words: without evacuation conditions outside tunnels, emergency rescue station, structural type, evacuation area, avoidance rescue area, isolation region

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