Abstract: In order to figure out the most-dangerous fire location and the disaster prevention design for curved tunnels, the typical fire scenarios, the factors affected critical velocity, as well as the disaster-prevention jet fan configuration of curved tunnels was discussed in this paper. The results showed that: The disaster prevention ventilation design for curved tunnelsshould be considered in case of the fire accident occurred at the convex wall in the steady stage of curve. The maximum critical velocity of curved tunnels was higher than that of the straight tunnel. Therefore, the correction coefficients on fire location, curve radius and tunnel slope for critical velocity of curved tunnelswere proposed respectively. Moreover, the number of operating jet fans for disaster preventionof curved tunnels was higher than that of the straight tunnel andthe calculation method for the number of operating jet fans for disaster prevention in curved tunnels was proposed.
戴开来,王峰. 曲线型公路隧道防灾通风设计问题探讨[J]. 隧道与地下工程灾害防治, 2024, 6(2): 76-83.
DAI Kailai, WANG Feng. Discussion on disaster prevention ventilation design for a curved road tunnel. Hazard Control in Tunnelling and Underground Engineering, 2024, 6(2): 76-83.
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2024, Vol. 6 
