火灾对隧道衬砌结构的损害及防范措施研究

A Study on Fire Damage to Tunnel Lining and Fire-Control Measures

由于隧道火灾温度高,升温速度快,会对衬砌结构造成严重的损坏,并影响衬砌结构体系的可靠性。文章以上海某地铁隧道火灾为背景,在对国内外隧道火灾案例调研的基础上,分析了火灾高温对衬砌结构的损害形式,指出了提高衬砌结构耐火性能的必要性和紧迫性,并初步给出了提高隧道衬砌结构耐火性能的思路和方法,可供类似研究参考。

With high temperature and quick increase of temperature, the tunnel fire may do a heavy damage to tunnel lining and reduce the reliability of the structural system. On the background of one tunnel fire in Shanghai Metro System, the damage by high temperature to the tunnel lining is discussed. At the same time, the necessary of study on the fire damage to the lining is presented. On the basis of above given analysis and investigation of fire cases, the preliminary fire - control measures on tunnel lining are established. The results of this paper can be applied to similar research about tunnel fire.