Influence of Installation Position of Jet Fan on Ventilation Effect in Disaster Prevention Ventilation of Railway Tunnel

被引：0
|
作者：
Zhao D. [1 ,2 ]
Wen S. [1 ]
Yang B. [1 ]
机构：
[1] School of Civil Engineering, Southwest Jiaotong University, Chengdu
[2] Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu
来源：
Zhongguo Tiedao Kexue/China Railway Science | 2021年 / 42卷 / 01期
关键词：
Emergency exit; Equivalent diameter; Installation position; Jet fan; Railway tunnel; Rescue station; Ventilation for disaster prevention;
D O I：
10.3969/j.issn.1001-4632.2021.01.08
中图分类号：
学科分类号：
摘要：
The network ventilation algorithm was used to determine the model and quantity of jet fans under disaster prevention ventilation conditions at the emergency exit of railway tunnel and the rescue station at tunnel entrance. The three-dimensional numerical method was used to study the influence of the installation position of jet fans on disaster prevention ventilation effect in the auxiliary tunnel at the emergency exit and the parallel pilot tunnel of the rescue station at tunnel entrance. The recommended values for the distances between the installation position of jet fans and the protective door and the outermost communication channel of the rescue station at tunnel entrance were proposed. Results show that for the emergency exit of the single-lane auxiliary tunnel, the distance between the installation position of jet fans and the protective door should be greater than 10.9 times the equivalent diameter of the auxiliary tunnel section. For the emergency exit of the two-lane auxiliary tunnel, the distance between the installation position of jet fans and the protective door should be more than 7.4 times the equivalent diameter of the auxiliary tunnel section. For the rescue station at tunnel entrance, the jet fans should be installed on the side close to the exit of parallel pilot tunnel, and the distance between the installation position of jet fans and the nearest cross channel should be greater than 8.3 times the equivalent diameter of the parallel pilot tunnel section. © 2021, Editorial Department of China Railway Science. All right reserved.
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页码：59 / 70
页数：11
相关论文
共 16 条
  • [1] TB 10020-2017 Code for Design on Rescue Engineering for Disaster Prevention and Evacuation of Railway Tunnel, (2017)
  • [2] ZHAO Li, YAN Zhiguo, Computational Fluid Dynamics (CFD) Analysis of Spatial Layout Optimization of Jet Ventilation Fan Used in Two-Lane Road Tunnel, Tunnel Construction, 36, 4, pp. 411-417, (2016)
  • [3] ZHANG Heng, WU Jin, CHEN Shougen, Et al., Impact of the Fan Arrangement Mode on the Construction Ventilation Effect along the Highly Intensive Gas Tunnel, Journal of Safety and Environment, 18, 5, pp. 1834-1841, (2018)
  • [4] WANG Song, REN Gang, CUI Xinghua, Et al., The Numerical Simulation and Analysis of Road Tunnel Longitudinal Ventilation, Building Energy & Environment, 34, 2, pp. 46-48, (2015)
  • [5] CAO Zhengmao, YANG Qixin, GUO Chun, A Study of the Layout of Jet Fans in Railway Tunnels, Modern Tunnelling Technology, 50, 5, pp. 140-145, (2013)
  • [6] ZHAO Dongping, JIANG Yao, Study of Fire Ventilation Scheme of Emergency Rescue Station in a Railway Tunnel and Its Influencing Factors Analysis, Tunnel Construction, 37, 8, pp. 952-957, (2017)
  • [7] WANG Junheng, FANG Zheng, MA Tianyou, Study on the Longitudinal Velocity Distribution of Tunnel with Multiple Fans, Fire Science and Technology, 38, 6, pp. 817-819, (2019)
  • [8] FAN Jianguo, FANG Yong, LEI Shuai, Et al., Layout of Jet Fans Used in Double-Lane Highway Tunnels, Modern Tunnelling Technology, 54, 2, pp. 149-155, (2017)
  • [9] FANG Yong, PENG Pei, ZHAO Zicheng, Et al., Numerical Simulation of the Effect of Outlet Position of Air Duct on the Construction Ventilation of the Tunnel, Chinese Journal of Underground Space and Engineering, 10, 2, pp. 468-473, (2014)
  • [10] YU Yinghua, LEI Bo, BI Haiquan, Numerical Simulation of Jet Fan Pressure Rise on Enlarged Section of Tunnel, Refrigeration and Air-Conditioning, pp. 172-175, (2005)
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