地下空间排烟技术应用--排烟理论与小尺寸实验分析

Application of smoke exhaust techniques in underground space:On smoke exhaust theory and miniature model experiments

随着城市的快速发展和人口不断增多,地下建筑应运而生,并成为城市商业发展极为重要的组成部分。文章以广州市天河区时尚天河广场地下商业建筑为模型,针对地下空间较大、火灾时烟雾不易扩散的特性,建立了小尺寸火灾模型实验台(1:20缩放),测试分析地下空间中移动式排烟装备的应用,根据不同工况下移动排烟的效果,与排烟理论综合分析得到合理的排烟建议,为地下商业建筑的排烟提供数据支持。

With the rapid development of the city and increasing population,underground buildings emerge as the times require and become an extremely important part of the urban commercial development.This paper takes the underground commercial building of Shishang Tianhe Square in Tianhe District of Guangzhou City as a model.Given the characteristics of large underground space and incapability of smoke diffusion in fire,the author established a small size fire model platform(1:20 scaling)to examine the application of portable smoke exhaust facilities in underground space,records experiment’s results under different conditions,and worked to provide data support and practicable solutions for smoke management issues in underground commercial buildings.