秦岭终南山公路隧道火灾试验竖井通风的研究  

A Study on the Shaft Ventilation for Tunnel Fire Experiment in Zhongnanshan Section of Qinling Mountains

作　　者：李国庆 赵菊梅[1] 钟新樵[1] 

机构地区：[1]西南交通大学峨眉校区土木系,峨眉614202

出　　处：《地下空间与工程学报》2005年第3期467-469,477,共4页Chinese Journal of Underground Space and Engineering

基　　金：西部交通科技项目(2001-318-00071)

摘　　要：为了弄清设有竖井的长大隧道发生火灾时隧道内温度及烟流的分布规律,在长大隧道发生火灾时能制定合理的隧道火灾救援方案,特进行秦岭终南山公路隧道火灾试验坚井通风的研究,此次试验按照流变规律模拟隧道火灾情况,进行三种火灾规模在三处位置的火灾实验,通过实验得出火灾时隧道内温度与火灾规模成正比,火灾火源点的最高温度与竖井的高度成正比关系,火灾的持续时间与竖井的高度成反比关系,找出了竖井通风情况下隧道火灾时温度纵向分布的规律。为隧道火灾时救援方案的制定提供依据。The Study on shaft!ventilation has been undertaken to reveal the distribution law of the temperature and smoke flow, and to come up with the rescue scheme while the outbreak of a fire appears inside a large, big tunnel in Zhongnanshan Section of Qinling Mountains. Based on the law of flow conversion, this study has simulated the fire surroundings by setting three fire ranks to three spots. It has been shown that, at fire, the interior temperature as well as the highest temperature of a fire source is respectively in direct proportion to the fire rank as well as the height of vertical shaft, and that the fire duration in inverse proportion to its height. The temperature longitudinal law revealed in this fire experiment provides a plan for how to rescue from a fire.

关 键 词：隧道 竖井 火灾试验 温度 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]