Study On The Natural Wind Press And Network Ventilation System Of Highway Tunnel

The construction of highway tunnel is speeding up today because of the continuousdevelopment of economy for our country. Many people start to focus the driving condition inthe tunnel. Therefore, it goes without saying that the importance of the highway tunnelventilation technology searching. As one of the ventilated dynamic, the wind pressure couldprovide the motion for the ventilation system. It can save the operating costs and maximizethe social economic benefits. To this end, this paper systematically carries on the calculationmethod of the natural wind pressure and the highway tunnel net ventilation system which canprovide the reference to the ventilation design and the ventilation operating control inhighway tunnel.Firstly, the mathematical model is established which correctly reflect the impact of heattransferring by the rock and vehicle. The distribution of the axial temperature is obtained inthis way.Secondly, the tunnel net ventilation model is finished by analyzing each element of thetunnel ventilation system on the base of the network graph theory.Thirdly, the tunnel ventilation network software is developed by the environment ofWindows Visual Studio. Many of the ventilation calculating is worked by Matlab. Thefunction of the ventilation design and numerical modeling is finally achieved by this software.At last, On the basis of the collected a large number of meteorological data, theQiangfengling tunnel natural wind pressure is researching by calculating. The ventilationpattern is also optimized by NVSRT.