Abstract
With the development of economy, more and more road tunnels have been built. Due to the relatively isolated environment of the tunnel, fire protection is the most important factor for the safe management of tunnel operation. During the fire process, many people are killed by the fire smoke. As for preventive measures of road tunnel fire, smoke exhaust system is the most effective way to control the spread of fire smoke. Based on full size tunnel fire test and simulation analysis, this study carries out effect analysis of fans activating time on smoke control mode for road tunnel fire. The corresponding results are useful to establish fire control strategy and personnel evacuation plan for tunnel management system.
Highlights
Recent incidents have drawn widespread attention to the risks of fires in road tunnels (e.g., Channel Tunnel, Mont Blanc, Tauern, Gotthard)
Based on full size tunnel fire test and with the help of FDS simulation software, this study carries out effect analysis of fans activating time on smoke control mode for road tunnel fire
The fire test indicates while the fire smoke arrive the simulation research, the transformation of the tunnel smoke outlet, first it always tends to bypass the outlet ventilation mode will change the tunnel air flow and it is exhausted by the fans
Summary
Recent incidents have drawn widespread attention to the risks of fires in road tunnels (e.g., Channel Tunnel, Mont Blanc, Tauern, Gotthard). Little work has been done to analyze the relationship between fans activating time and smoke control method. The fire test indicates while the fire smoke arrive the simulation research, the transformation of the tunnel smoke outlet, first it always tends to bypass the outlet ventilation mode will change the tunnel air flow and it is exhausted by the fans.
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