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《Chinese Journal of Underground Space and Engineering》 2012-03
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The Simulation Research of Ventilation System of Highway Tunnel with Several Ramps

Wang Yan1,Wang Ziyun1,Tang Shangming2,Meng Xi2(1.College of Architecture and Environment,Sichuan University;Chengdu 610065,China;2.China Railway Tunnel Survey and Design Institute Ltd,Tianjing,300133;3.School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China)  
With the development of highway tunnel,the forms of the highway tunnel are more and more complicated,as a rusult,the ventilation calculation of highway tunnel is more and more complex.In this paper,the ventilation system of Xiang River YingPan Road Tunnel in Changsha at different vehicle speeds has been simulated by using the SES software to optimize the operating mode of the ventilation system and reduce the ventilation energy consumption;and the concentration of waste gas in different ventilation operating mode has been analysed,verifying the feasibility of the optimized ventilating system in the way of health and safety;the study found that the well which was too close to the entrance,would cause backflow,and increase the energy consumption of fan operation.The results could be as reference for similar projects.
【CateGory Index】: U453.5
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