A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Control of smoke propagation in a wide road tunnel with side wall jet fans through a dedicated ventilation strategy
This paper deals with a specific emergency longitudinal ventilation strategy dedicated to wide cut and cover road tunnels where jet fans can only be installed along the side walls due to the limited height of the tunnel. This strategy has been developed to cope with the phenomena of low velocity that may appear in the middle of the tunnel cross-section for this typical tunnel configuration and jet fan installation. This could lead to significant back layering when this occurs in the region of fire. The solution is to inhibit the nearest bank of fans upstream of the fire. This ventilation strategy has been proposed and successfully installed in the A1 (M) Hatfield Tunnel in the UK. The design and the on site acceptance tests results are presented in this paper.
Control of smoke propagation in a wide road tunnel with side wall jet fans through a dedicated ventilation strategy
This paper deals with a specific emergency longitudinal ventilation strategy dedicated to wide cut and cover road tunnels where jet fans can only be installed along the side walls due to the limited height of the tunnel. This strategy has been developed to cope with the phenomena of low velocity that may appear in the middle of the tunnel cross-section for this typical tunnel configuration and jet fan installation. This could lead to significant back layering when this occurs in the region of fire. The solution is to inhibit the nearest bank of fans upstream of the fire. This ventilation strategy has been proposed and successfully installed in the A1 (M) Hatfield Tunnel in the UK. The design and the on site acceptance tests results are presented in this paper.
Control of smoke propagation in a wide road tunnel with side wall jet fans through a dedicated ventilation strategy
Kontrolle der Rauchausbreitung in einem breiten Straßentunnel mit Seitenwand-Strahllüftern durch eine besondere Lüftungsstrategie
Waymel, F. (author) / Small, L. (author) / Lorenz, M. (author)
2012
8 Seiten, 10 Bilder, 5 Quellen
Conference paper
English
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