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Asia's longest single cave, double track tunnel completed

Xinhua, July 9, 2016 Adjust font size:

Construction on a 16-km single tunnel with double tracks for high-speed trains was completed Friday in northwest China's Shaanxi Province.

The tunnel cuts through the Qinling Mountains and is the longest of its kind in Asia, according to its builders.

It is part of a high-speed rail line that links Xi'an, the provincial capital and Chengdu in southwest China's Sichuan Province.

The 643-km line, with a designed speed of 250 km per hour, will slash the travel time between the two cities from the previous 16 hours to just three hours. Endi