[1]刘蕤源.高海拔铁路隧道紧急救援站火灾通风排烟参数优化[J].高速铁路技术,2022,13(04):75-81.[doi:10.12098/j.issn.1674-8247.2022.04.012]
　LIU Ruiyuan.Optimization of Fire Ventilation and Smoke Exhaust Parameters in Emergency Rescue Stations of High-altitude Railway Tunnels[J].HIGH SPEED RAILWAY TECHNOLOGY,2022,13(04):75-81.[doi:10.12098/j.issn.1674-8247.2022.04.012]
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高海拔铁路隧道紧急救援站火灾通风排烟参数优化()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
13卷
期数:
2022年04期
页码:
75-81
栏目:
出版日期:
2022-08-28

文章信息/Info

Title:
Optimization of Fire Ventilation and Smoke Exhaust Parameters in Emergency Rescue Stations of High-altitude Railway Tunnels
文章编号:
1674—8247(2022)04—0075-07
作者:
刘蕤源
中铁第一勘察设计院集团有限公司, 西安 710043
Author(s):
LIU Ruiyuan
China Railway First Survey and Design Institute, Xi’an 710043, China
关键词:
高海拔|铁路隧道|通风排烟|参数优化|数值模拟
Keywords:
high altitude|railway tunnel|ventilation and smoke exhaust|parameter optimization|numerical simulation
分类号:
U453.5
DOI:
10.12098/j.issn.1674-8247.2022.04.012
文献标志码:
A
摘要:
现行《铁路隧道防灾疏散救援工程设计规范》主要针对平原地区给出铁路隧道紧急救援站火灾通风排烟设计参数。然而,随着海拔高度升高,火灾燃烧及烟气扩散规律发生变化,需结合高海拔实际情况对铁路隧道紧急救援站通风排烟参数进行优化。本文采用火灾动力学模拟软件FDS建立单洞双线及双洞单线两种紧急救援站三维全尺寸模型,对比了不同海拔高度下不同排烟参数对烟气蔓延范围及吸穿效应的影响,分别给出了适用于高海拔铁路单洞双线和双洞单线隧道紧急救援站的通风排烟优化参数。研究结果表明:(1)现行规范中关于横通道防护门处风速及紧急救援站两端抑制烟气流动风速的要求,主要适用于双洞单线隧道紧急救援站,应用于单洞双线隧道将造成"吸穿"现象;(2)针对单洞双线隧道紧急救援站,制定了适用于各海拔的通风方案,并给出了涵盖横通道防护门处风速、紧急救援站两端抑制烟气流动风速等参数优化建议值;(3)针对双洞单线隧道紧急救援站,给出了不同海拔高度下排烟口尺寸、排烟风速等参数优化建议值。
Abstract:
The current Code for Design on Evacuation Engineering for Disaster Prevention and Rescue of Railway Tunnel mainly gives the design parameters of fire ventilation and smoke exhaust of emergency rescue stations of railway tunnels in plain areas. However, with the increase in altitude, the law of combustion and smoke diffusion changes, so it is necessary to optimize the ventilation and smoke exhaust parameters of the emergency rescue stations of railway tunnels in combination with the actual situation at high altitudes. In this paper, the fire dynamics simulation software FDS is used to establish three-dimensional full-scale models of single-tube double-track and double-tube single-track emergency rescue stations. The impact of different smoke exhaust parameters on smoke spreading range and plug-holing effect at different altitudes is compared, and the ventilation and smoke exhaust optimization parameters suitable for single-tube double-track and double-tube single-track emergency rescue stations of high-altitude railways are given respectively. The results show that: (1) The requirements of the current specifications on the wind speed at the protective door of the cross passage and the wind speed at both ends of the emergency rescue station to suppress the flow of smoke are mainly applicable to the emergency rescue station of the double-tube single-track tunnel, which will cause "plug-holing" when applied to the single-tube double-track tunnel. (2) For the emergency rescue station of single-tube double-track tunnels, the ventilation scheme suitable for each altitude is formulated, and the recommended optimization values of parameters such as wind speed at the protective door of the cross passage and wind speed at both ends of the emergency rescue station to suppress the flow of smoke are given. (3) For the emergency rescue stations of double-tube single-track tunnels, the recommended parameters such as smoke vent size and smoke exhaust wind speed at different altitudes are given.

备注/Memo

备注/Memo:
作者简介：刘蕤源(1989-),男,工程师。基金项目：中国铁建股份有限公司科技重大专题(2019-A04)引文格式：刘蕤源.高海拔铁路隧道紧急救援站火灾通风排烟参数优化[J].高速铁路技术,2022,13(4):75-81.LIU Ruiyuan.Optimization of Fire Ventilation and Smoke Exhaust Parameters in Emergency Rescue Stations of High-altitude Railway Tunnels[J]. High Speed Railway Technology, 2022, 13(4)：75-81.
更新日期/Last Update: 2022-08-28