WUHAN, July 17 (Xinhua) -- The 4,011-meter-long Yangtze River tunnel of the Wuhan Metro Line 12 achieved a tunnelling breakthrough on Wednesday in Wuhan, central China's Hubei Province. The Wuhan Metro Line 12, which is 59.9 kilometers long, is currently the longest loop metro line in the country.
An engineering vehicle runs in the Yangtze River tunnel of the Wuhan Metro Line 12 in Wuhan, central China's Hubei Province, July 16, 2025. (Xinhua/Xiao Yijiu)
A constructor walks in the Yangtze River tunnel of the Wuhan Metro Line 12 in Wuhan, central China's Hubei Province, July 16, 2025. (Xinhua/Xiao Yijiu)
Constructors work in the Yangtze River tunnel of the Wuhan Metro Line 12 in Wuhan, central China's Hubei Province, July 16, 2025. (Xinhua/Xiao Yijiu)
Constructors work in the Yangtze River tunnel of the Wuhan Metro Line 12 in Wuhan, central China's Hubei Province, July 16, 2025. (Xinhua/Xiao Yijiu)