Reflection from Zhengzhou ′7·20′ Rainstorm towards Personnel Evacuation Platform Renovation Design in Metro Sections

Objective In recent years, extreme weather events and natural disasters increase and intensify frequently, and rainstorm-induced disasters in built urban rail transit and on-going foundation pit projects are causing significant and irreparable losses to the safety of passengers and social property. Thus, it is necessary to further enhance urban rail transit system flood prevention and disaster resistance capabilities. Method Taking the impact of Zhengzhou ′7·20′ Rainstorm on metro as a starting point, the evacuation schemes for train passengers during metro interval disasters are discussed and relevant suggestions are derived for the evacuation platform setup plan at critical parts of metro lines. Result & Conclusion It is suggested to adopt a through-type evacuation platform scheme between metro intervals and stations; interval connecting passage evacuation platform should adopt the through-type scheme and set up vertical steel ladders for connecting track bed and evacuation platform; small civil defense doo