People's Livelihood Project, Building a "Safety Line" for Subway Flood Control, We Are in Action!

This year, the rainfall in Beijing's flood season is characterized by sudden, local and strong short-term showers. According to the requirement of "preventing once-in-a-century rainstorm", the Beijing Metro Operation Company has carried out flood control protection transformation on some low-lying station squares of 11 lines of Beijing Metro Line, adding retaining walls, raising the ground elevation of some station squares, adding water collection tanks and drainage facilities, and building an online monitoring system for water pumps. Beijing Urban Construction North Group actively participates in the construction of subway flood control renovation, responsible for lines 5, 7, 9, 10, 13, S1, Changping and other lines, water collection tanks and drainage pumps at multiple stations, galvanized steel pipe radiation, power distribution, and platform renovation And other construction tasks. "Urban Construction North Iron Army" goes all out to build a "safety line" for subway flood control to help ensure the safety of subway operation and the personal safety of passengers.

The project involves many construction difficulties such as many stations, scattered areas and tight construction period. In order to ensure safe use in flood season, the project team adopts the operation mode of "simultaneous construction and sectional running water" of each station. Under the condition of strictly implementing the norms and standards and ensuring the quality, the project team scientifically formulates the process schedule, seizes the time, actively cooperates with the design to deepen, and processes and produces materials and components in advance to speed up the construction in various ways, effectively ensure the schedule. At the same time, facing the unfavorable conditions of the construction of the entrance and exit stations and the square in front of the station, the construction personnel of the project team will clean up the construction site after daily construction. The tools and materials will be stored in fixed positions and surrounded by hard fences. The focus will be on day and night construction from the daily shutdown of the subway to the next day before operation. While promoting various construction tasks, the safety of passengers will be ensured and meet the requirements of subway operation.

In order to ensure better drainage effect, the project team pays special attention to the problem of rainwater drainage in extreme situations in the construction of drainage ditches and wells, optimizes the scheme for construction, and uses big data analysis to evaluate the state parameters to provide technical and conditional support for intelligent operation and maintenance. At the same time, rainproof measures and plans shall be actively taken, and sufficient drainage equipment shall be provided on site to prevent rain during construction, ensure timely discharge of accumulated water and avoid accumulated water.

At present, the construction tasks have been successfully nearing the end. The project management team is responsible for contributing to the flood prevention and drainage of Beijing subway.