Experimental Study on CO Distribution in the Reduced-Scale Tunnel Fire Under Longitudinal Ventilation

2010 ◽  
Vol 20 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Jialei Zhang ◽  
Lizhong Yang ◽  
Qinkun Xu ◽  
Xiao Li
Keyword(s):  
Experimental Study ◽  
Tunnel Fire ◽  
Longitudinal Ventilation ◽  
Reduced Scale

Reduced-Scale Model Tests of Fires in Railway Tunnel and Structure Fire Safety

2010 ◽  
Vol 168-170 ◽  
pp. 2473-2476 ◽  
Author(s):  
Hong Li Zhao ◽  
Zhi Sheng Xu ◽  
Xue Peng Jiang
Keyword(s):  
Fire Safety ◽  
Numerical Models ◽  
Scale Model ◽  
Railway Tunnel ◽  
Tunnel Fires ◽  
Tunnel Fire ◽  
Longitudinal Ventilation ◽  
Overall Stability ◽  
Reduced Scale ◽  
Ventilation Velocity

The high-temperature toxic gas released by long railway tunnel fires not only causes great harm to persons, but also damages the structure of the tunnel which will reduce the overall stability of tunnel. In order to diminish the damage to tunnel structure produced by a tunnel fire, on the basis of the first extra-long underwater railway tunnel in China, some reduced-scale tests were carried out to study the distribution of smoke temperature along the tunnel ceiling, the smoke velocity and the backlayering distance with the fire size of 63KW. The longitudinal ventilation velocity and the tunnel gradient varied in these tests. The smoke temperature below the tunnel ceiling in different times and under different longitudinal ventilation velocity, the smoke velocity under the ceiling, and the backlayering distance in the presence of different ventilation velocity are acquired from the tests. The conclusions have the guiding meaning to the disaster prevention design and construction of structure fire safety in tunnel fires, and all the experimental data presented in this paper are applicable for the verification of numerical models.

COMPARISON BETWEEN LONGITUDINAL VENTILATION SYSTEM AND POINT EXTRACTION SYSTEM IN ROAD TUNNEL FIRE SAFETY

2021 ◽  
Vol 77 (1) ◽  
pp. 41-59
Author(s):  
Ti-Sheng HUANG ◽  
Nobuyoshi KAWABATA ◽  
Miho SEIKE ◽  
Masato HASEGAWA ◽  
Futoshi TANAKA ◽  
...  
Keyword(s):  
Fire Safety ◽  
Ventilation System ◽  
Extraction System ◽  
Road Tunnel ◽  
Tunnel Fire ◽  
Longitudinal Ventilation

An Experimental Study of Smoke Movement in Tunnel Fire with Natural and Forced Ventilations

2005 ◽  
Vol 29 (6) ◽  
pp. 711-721 ◽  
Author(s):  
Cheol-Hong Hwang ◽  
Byung-Hun Yoo ◽  
Sung-Min Kum ◽  
Jung-Yup Kim ◽  
Hyun-Joon Shin ◽  
...  
Keyword(s):  
Experimental Study ◽  
Smoke Movement ◽  
Tunnel Fire

Experimental study on curved flame characteristics under longitudinal ventilation in a subway tunnel

2017 ◽  
Vol 114 ◽  
pp. 733-743 ◽  
Author(s):  
Shaogang Zhang ◽  
Xudong Cheng ◽  
Kai Zhu ◽  
Yongzheng Yao ◽  
Long Shi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Subway Tunnel ◽  
Longitudinal Ventilation
Sign in / Sign up

Export Citation Format

Share Document