Analysis of Fire Characteristics of Parallel Guide Tunnel in Zhegu Mountain Tunnel

Tunnel fire has the characteristics of diversity and uncertainty, which will lead to jump spread. After tunnel fire, it is difficult to evacuate safely, which is easy to cause traffic jams and secondary disasters. It is difficult to put out fire and rescue, and the loss is unpredictable. In order to analyze the fire characteristics of Parallel guide tunnel in Zhegu Mountain Tunnel, in this paper, a full-scale numerical simulation model of parallel guide tunnel in Zhegu Mountain Tunnel is established, and the influence of tunnel main line fire on parallel guide tunnel is studied by using large eddy simulation method. The smoke spread and the longitudinal temperature distribution of the parallel guide tunnel during the main line fire were obtained through the study.