Research on Cooling Effect of High Ground-Temperature Tunnel Based on Different Ventilation Parameters
In high ground-temperature tunnels,due to the closed nature of the tunnel,it is difficult to remove the heat and air pollutants in the tunnel in time,which leads to the deterioration of the operating environment,the reduction of work efficiency and the increase of construction faults.Ventilation and cooling is an important measure to alleviate the problem of high ground temperature in tunnels.In this paper,Fluent numerical simula-tion software is utilized to establish a simulation model with high ground-temperature tunnels as the research object,comparing the cooling effect of the two types of ventilation:vault press-in type and sidewall press in type.The results show that the effect of vault press in ventilation is better than that of sidewall press in ventila-tion.The effective utilization rate of low-temperature airflow is higher,which is more conducive to improving the high-temperature environment in the cave.
High ground temperature tunnelTemperature controlNumerical simulationCooling effect
万方数据
维普
