A Pathfinder-Based Safe Evacuation Model for Ultradeep Underground Public Space

Abstract

In recent years, many cities have stepped up the development and use of underground public space. However, the development of underground space is constrained by safe evacuation. It is urgent to design a suitable safe evacuation model for ultradeep underground public space (UUPS). From the perspective of building design, this paper creates a novel safe evacuation model that integrates sunken shelter with a self-designed safe evacuation system (SES), and compares its effect with that of other models. Then, the application of our model in Hongtudi Station, Line 10 of Chongqing Rail Transit (CRT) was simulated on Pathfinder. The results show that the safe evacuation model, which couples sunken shelter with the SES, is feasible to evacuate personnel from the UUPS. The research sheds new light on the safe evacuation technique from the UUPS.