China Business (@PDChinaBusiness) “The longest tunnel on the Sichuan section of Xining-Chengdu railway was successf” — TopicDigg
China Business
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The longest tunnel on the Sichuan section of Xining-Chengdu railway was successfully drilled through on Saturday in Songpan County, southwest China's Sichuan Province, laying a solid foundation for the official opening of the line that connects the northwest and southwest regions in the country.
Stretching 11,795 meters, the single-bore, double-track railway tunnel features a designed speed of 200 km/h, and an average elevation of 3,500 meters.
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