摘要
文章从双向行车隧道火灾通风的特点入手,着重分析了火灾时隧道内温度和烟气分布对洞内人员和车辆的不利影响,并对目前国内应用最多的平导外风道通风方式进行了深入研究,得出了该通风方式在火灾时不能保证人员和车辆安全的结论;同时提出了三种可行的通风方案,并通过分析对比,最后择优推荐了较适合我国国情的、采用两个单车道隧洞单向行车的全纵向通风方案。
This paper analyzes the adverse effects on people and vehicles located in a tunnel in the case of a fire with respect to temperature and smoke distribution, starting with the features of ventilation in a two-way traffic tunnel. Furthermore, a study was carried out regarding the widely used external air passage ventilation method of a horizontal adit, with the conclusion that this air passage cannot guarantee the safety of tunnel users and vehicles in case of a tunnel fire. Three feasible ventilation schemes are presented, and full longitudinal ventilation in two one-lane one-way traffic tunnels is recommended based on analysis and comparison.
出处
《现代隧道技术》
EI
北大核心
2012年第3期32-40,48,共10页
Modern Tunnelling Technology
关键词
低等级公路
超特长隧道
火灾特点
通风方案
Low-grade highway
Extra-long tunnel
Features of tunnel fire
Ventilation scheme
