摘要
在3条公路隧道上进行了10次全尺寸试验,研究不通火灾条件和风速下烟气的运动情况。主要测量了各隧道1000m范围内的拱顶下方烟气温度、烟气层高度分布以及烟气前锋的运动情况等,并分析了纵向风速对火灾羽流形态、烟气前锋运动速度、隧道内线型缆式感温探测系统响应等的影响。此处所列的所有全尺寸试验数据可以进行进一步的分析,以便研究各种已知火灾模型在计算长隧道火灾时所得的结果是否有效。
10 full scale tests were conducted in 3 road tunnels to study the smoke spread with different fire sizes and wind speed conditions. The smoke temperature under the ceiling, the smoke layer height distribution and the travel of the smoke front in a 1000m long domain along each road tunnel were measured. Meanwhile the influence of longitudinal wind velocity on the fire plume shape, the velocity of the wind front and the response of cable line-type heat detector was analyzed. All these full scale data presented here can be used for further study on the verification or improvement of existing fire models for enhancing their applicability to such long tunnels.
出处
《火灾科学》
CAS
CSCD
2006年第4期212-218,共7页
Fire Safety Science
基金
国家自然科学基金(50323005)
高等学校博士学科点专项科研基金(20030358051)
关键词
全尺寸试验
公路隧道
烟气运动
风速
烟气温度
Full scale experiments
Road tunnel
Smoke spread
Wind speed
Smoke temperature
