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Fire Smoke Control in Tunnel Ventilated with Jet Fans

Gao Mengli[Department of Environmental Engineering, Lanzhou Railway Institute, 730070]  
The smoke is primary harm of tunnel fire, diffusion of smoke is controlled by tunnel air current. Under the action of longitudinal current with distinct property, the three form of smoke diffusion are proposed. Considering the fire intensity and place, the form property and relation of the natural wind are analyzed. The property of fire and regulative superiority of jet fans are considered fully, the principle and method to control smoke diffusion are established, the alility to prevent fire is imploved grently.
【Fund】: “八五”国家重点科技攻关项目
【CateGory Index】: U457.5
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