China is constructing the world’s deepest and Asia’s largest underground high-speed railway station under the Great Wall at the Badaling section in Beijing. The station under construction will be 3-story high and have a 36,000 square meters floor area, including platform, entrance and exit. The railway tracks will be 102 meters underground.
The station is an important part of a 12 kilometers long tunnel section of the 174-km Beijing–Zhangjiakou high-speed railway line. The tunnel is the longest one of the railway line.
“Passengers will enter and exit the station about 100 meters underground, and it will be very safe,” said Dai Longzhen, a senior manager of the construction company China Railway No 5 Engineering Group Co Ltd.
An escalator would raise passengers 62 meters at vertical height, and inclined elevators will also be used in the station for the first time.
To secure the safety of passengers, the station will change the inclined shafts that are used to build the station as permanent rescue channels.
The Beijing-Zhangjiakou high speed line runs through Haidian, Changping and Yanqing districts of Beijing. The line continues northwest through Huailai and Xunhua counties in Hebei province before terminating in the city of Zhangjiakou, making for a total length of 174 km.
The line is designed for trains travelling up to 350 km per hour, which is expected to shorten the single-journey time from more than 3 hours to approximately one hour. The line is estimated to be completed in 2019.
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