Study on lateral evacuation characteristics in highway tunnel emergencies
LIU Fazheng
ZHANG Chao
MA Hui
Abstract：In order to investigate the evacuation of personnel in the event of a fire in a dual-tube single-lane highway tunnel,this paper takes the background of the"8.27"major truck fire incident in the G15 Shenhai Expressway Maoli Ridge Tunnel,and uses Pathfinder software to study the impact of the lateral evacuation channel spacing and different vehicle types on the evacuation of personnel in highway tunnels.The aim is to provide a theoretical basis for the design of safe evacuation channels and evacuation path planning in dual-tube single-lane highway tunnels.The results indicate that when the evacuation is carried out laterally,the ve-hicle lanes play a crucial role due to their wider clearance width,resulting in a minimal impact on overcrowding during the personnel evacuation process.In comparison,the entrances and exits at both ends of the tunnel play a secondary role in the safety evacuation of personnel.The type of vehicles inside the tunnel has a significant impact on evacuation,especially for large buses,where the internal evacuation time is longer,leading to an o-verall lower efficiency in evacuation speed compared to all other evacuation groups.
Keywords：highway tunnelhorizontal evacuation passagespacingsafe evacuationPathfinder
Publication Date：2024-08-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 90-95 )