摘要
针对城市用地紧张而出现的地下商业街建筑,对其火灾的特殊性,采用计算机模拟分析技术,分析地下商业街火灾的烟流和温度的动态分布特点;并在公安部四川消防科学研究所提供的实体商业街内,对500 kg的火荷进行了实体燃烧,给出了沿通道内2个典型截面上不同高度上的烟气温度分布规律以及人员的逃生路线,根据实验数据和模拟数据的对比分析,证实模拟分析的可靠性,为地下商业街的防火评估、预测工作提供一定的参考作用。
Underground streets have been developed in cities with land shortages. We simulated the dynamic distribution characteristics of smoke flow and temperature from fires under natural conditions in underground streets. The experiment was carried out at the Sichuan Fire Research Institute of Public Security Ministry, P.R. China. A 500 kg fire source was used in a real underground street. Temperature distribution at different heights and personnel escape routes are shown in two typical sections. The comparison between the computer simulation data and experimental data validates the simulation. This study provides a valuable reference for fire assessment of underground shopping streets.
出处
《重庆大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2008年第9期1074-1077,共4页
Journal of Chongqing University
基金
公安部科研院所社会公益研究资助项目(2005DIA2J007)
重庆市自然科学基金资助项目(CSTC,2007BB4131)
关键词
地下商业街
火灾实验
烟气流动
计算机模拟
underground shopping streets
fire experiments
smoke flow
computer simulation