摘要
对隧道火灾排烟技术进行了分析,得出了火灾条件下各类隧道最佳排烟方案。针对某城市公路隧道选择自然排烟方式进行数值模拟,确定了不同的火源功率下自然排烟开口面积要求,找出了二者的定量关系式,研究对比了火灾烟气蔓延长度及烟层厚度的变化规律,并就隧道人员安全疏散给出了建议。
The smoke exhaust technology of tunnel fire was analyzed,thus the best smoke exhaust scheme of all kinds of tunnels under fire conditions was obtained. Aiming at a city ＇s road tunnel,the numerical simulation of choosing natural smoke exhaust mode was conducted,determining the requirement of the natural exhaust opening area under different fire power,finding out the quantitative relationship between the two,and comparatively studying the length of the fire flue gas and the thickness of the smoke layer. A more specific scheme is given for the safe evacuation of tunnel personnel.
作者
许秦坤
邓军
陈健
林思雷
董智玮
张昊哲
肖静
XU Qinkun;DENG Jun;CHEN Jian;LIN Silei;DONG Ziwei;ZHANG Haozhe;XIAO Jing(School of Environment and Resources,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China;School of Civil and Structural Engineering,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China)
出处
《西南科技大学学报》
CAS
2018年第2期41-48,100,共9页
Journal of Southwest University of Science and Technology
关键词
隧道火灾
排烟方式
排烟口面积
数值模拟
安全疏散
Tunnel fire
Smoke exhaust scheme
Opening area
Numerical simulation
Safeevacuation
