Nankou Tunnelis get- through, making itself the first get-through tunnel along the Beijingsection of the Beijing-Zhangjiakou high speed railway, according to the Beijing Railway Engineering Corporation of China Railway Sixth Groupon September 13, 2018.
The 3,032-meter-long Nankou Tunnel lies at Nankou Village, Changping district of Beijing, with a design speed of 250 kilometers per hour.
The get-through gains precious time for the following construction of ballastless track bed, integration test and commissioning and other works, and lays a solid foundation for Beijing section’s construction.
Beijing-Zhangjiakou HSR runs for 173.9 km, including 70.5 km in Beijing and 103.4 km in Hebei province.
Upon completion, it will shorten the journey between Beijing and Zhangjiakou from three and a half hours to about one hour.