Emergency Disaster Prevention Design for Large Urban Rail Transit Transfer Station

Abstract

[Objective] In view of the increasing number of large-scale transfer stations in urban rail transit, which are characterized by deep burial depth, intensive personnel, limited escape and rescue sites, the difficulty and pressure of emergency and disaster prevention is very prominent. It is necessary to design the emergency and disaster prevention for such type of stations. [Method] With Optics Valley Plaza Complex in Wuhan as a practical case, the disaster characteristics faced by the large-scale transfer station are analyzed from five key aspects i.e. fire prevention, large passenger flow prevention, flood prevention, terrorist attack prevention and emergency epidemic protection. Solutions to the different types of disasters are proposed in combination with scheme design, simulation, calculation and analysis. [Result & Conclusion] Using open building layout and run-through pedestrian traffic layer, and setting up quasi-safety areas with natural smoke exhaust and sunken square are the effective fire prevention measures for the large underground space under difficult conditions. Analyzing the peak passenger flow based on the characteristics of the station, classifying the users of different types and in different periods, and setting up relatively independent and less crossover flow lines are the ways to effectively prevent large passenger flow. In addition to conventional flood prevention measures, strengthening hard isolation measures from surrounding underground spaces, such as adding flood doors, is a necessary means of flood prevention. Keeping the station clear, evacuating passengers quickly, and avoiding passengers′ stagnation can effectively prevent terrorist attacks. In response to sudden epidemics, daily prevention and control management should be strictly implemented in accordance with China′s relevant national regulations, and general or larger epidemic response measures should be taken in a timely manner.

Keywords

• urban rail transit
• large transfer station
• emergency disaster prevention design