Jinjiagou tunnel of Yan'an section along Yan'an-Yulin high-speed railway successfully drilled through in Shaanxi

This photo taken on Jan. 27, 2026 shows an interior view of the Jinjiagou tunnel along the Yan'an-Yulin high-speed railway in northwest China's Shaanxi Province. The Jinjiagou tunnel of the Yan'an section along the Yan'an-Yulin high-speed railway was successfully drilled through on Tuesday. The railway, with a designed speed of 350 kilometers per hour, will help to shorten the travel time between Xi'an and Yulin from 5 hours to 2 hours after it is open to the traffic. (Photo by Guo Peng/Xinhua)

An aerial drone photo taken on Jan. 27, 2026 shows a view of the Jinjiagou tunnel along the Yan'an-Yulin high-speed railway in northwest China's Shaanxi Province. The Jinjiagou tunnel of the Yan'an section along the Yan'an-Yulin high-speed railway was successfully drilled through on Tuesday. The railway, with a designed speed of 350 kilometers per hour, will help to shorten the travel time between Xi'an and Yulin from 5 hours to 2 hours after it is open to the traffic. (Photo by Guo Peng/Xinhua)

An aerial drone photo taken on Jan. 27, 2026 shows a view of the Jinjiagou tunnel along the Yan'an-Yulin high-speed railway in northwest China's Shaanxi Province. The Jinjiagou tunnel of the Yan'an section along the Yan'an-Yulin high-speed railway was successfully drilled through on Tuesday. The railway, with a designed speed of 350 kilometers per hour, will help to shorten the travel time between Xi'an and Yulin from 5 hours to 2 hours after it is open to the traffic. (Photo by Guo Peng/Xinhua)

An aerial drone photo taken on Jan. 27, 2026 shows a view of the Jinjiagou tunnel along the Yan'an-Yulin high-speed railway in northwest China's Shaanxi Province. The Jinjiagou tunnel of the Yan'an section along the Yan'an-Yulin high-speed railway was successfully drilled through on Tuesday. The railway, with a designed speed of 350 kilometers per hour, will help to shorten the travel time between Xi'an and Yulin from 5 hours to 2 hours after it is open to the traffic. (Photo by Guo Peng/Xinhua)