Experimental quantification of tunnel fire heat flux

Gibson, Timothy, Shaw, Timothy, Karlovsek, Jurij, Emberley, Richard and Torero, José L. (2016). Experimental quantification of tunnel fire heat flux. In: ITA-AITES World Tunnel Congress 2016 (WTC 2016). ITA-AITES World Tunnel Congress 2016, WTC 2016, San Francisco, CA USA, (248-259). 22-28 April 2016.

Author Gibson, Timothy
Shaw, Timothy
Karlovsek, Jurij
Emberley, Richard
Torero, José L.
Title of paper Experimental quantification of tunnel fire heat flux
Conference name ITA-AITES World Tunnel Congress 2016, WTC 2016
Conference location San Francisco, CA USA
Conference dates 22-28 April 2016
Proceedings title ITA-AITES World Tunnel Congress 2016 (WTC 2016)
Publisher Society for Mining, Metallurgy and Exploration
Publication Year 2016
Sub-type Fully published paper
Open Access Status Not yet assessed
ISBN 9781510822627
Volume 1
Start page 248
End page 259
Total pages 12
Language eng
Abstract/Summary Tunnel closures are highly undesirable and the lengthiest are generally attributed to structural failures (e.g. Mont Blanc). Although historical data shows structural failures are closely linked to fire, design parameters for tunnel safety are not well defined. Current research has focused on defining the fire heat release rate and temperature, but these parameters cannot be easily used to determined structural performance. The energy transferred to the structure, the heat flux, is required but current literature lacks these values. Full scale experiments were undertaken on passenger vehicles resulting in heat fluxes between 20-70kW/m2. Analysis shows a vehicle fire's duration is closely linked to its mass. Further analysis shows small vehicle fires can be scaled as a function of the tunnel diameter and the characteristic height of the desired vehicle. The present work provides engineers an appropriate design methodology to undertake informed thermal-structural analysis to minimize the risk of tunnel structural failure.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Sub-type: Fully published paper
Collection: School of Civil Engineering Publications
 
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Created: Fri, 23 Mar 2018, 03:07:50 EST