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文章通过对隧道货车火灾案例进行统计分析,除具有一般隧道火灾特征外,隧道货车火灾还具有温度较高、火势易蔓延、持续时间长的特点,总结得出货物总量、货物种类以及长大隧道交通量是影响货车火灾规模的关键因素。同时结合国内外现有关于货车的燃烧试验,确定出隧道货车火灾最高温度取值为1200℃,热冲击曲线的大致范围符合RABT曲线。并对货车火灾后衬砌损伤程度及预防技术进行归纳整理,以期为进一步研究隧道衬砌结构耐火性提供理论依据。
Through the statistical analysis of tunnel truck fire cases, in addition to the general characteristics of tunnel fire, tunnel truck fire also has the characteristics of high temperature, easy fire spread, long duration, sum up the total amount of goods, the type of goods and the growth Tunnel traffic is the key factor affecting the scale of truck fires. Combined with the existing domestic and foreign combustion tests on trucks, it is determined that the maximum temperature of tunnel truck fires is 1200 ° C, and the approximate range of the thermal shock curve is in line with the RABT curve. The damage degree and prevention technology of the liner after the fire were summarized and summarized in order to provide a theoretical basis for further research on the fire resistance of the tunnel lining structure.