Deqing tunnel of Guiyang-Nanning high-speed railway drilled through
Updated: August 4, 2021 09:51Xinhua
Staff members work inside the Deqing tunnel of the Guiyang-Nanning high-speed railway in Hechi, South China's Guangxi Zhuang autonomous region, Aug 2, 2021. The 6.61-kilometer-long Deqing tunnel was drilled through on Aug 3. It is a critical control project in the construction of the Guiyang-Nanning high-speed railway, which is expected to put into operation by the end of 2023. [Photo/Xinhua]
Staff members work inside the Deqing tunnel of the Guiyang-Nanning high-speed railway in Hechi, South China's Guangxi Zhuang autonomous region, Aug 2, 2021. [Photo/Xinhua]
A technician uses a 3D scanner to collect data inside the Deqing tunnel of the Guiyang-Nanning high-speed railway in Hechi, South China's Guangxi Zhuang autonomous region, Aug 2, 2021. [Photo/Xinhua]
Technicians use a 3D scanner to collect data inside the Deqing tunnel of the Guiyang-Nanning high-speed railway in Hechi, South China's Guangxi Zhuang autonomous region, Aug 2, 2021. [Photo/Xinhua]
Aerial photo taken on Aug 2, 2021 shows an external view of the Deqing tunnel of the Guiyang-Nanning high-speed railway in Hechi, South China's Guangxi Zhuang autonomous region. [Photo/Xinhua]
Staff members work inside the Deqing tunnel of the Guiyang-Nanning high-speed railway in Hechi, South China's Guangxi Zhuang autonomous region, Aug 2, 2021. [Photo/Xinhua]
Staff members celebrate the drill-through of the Deqing tunnel of the Guiyang-Nanning high-speed railway in Hechi, South China's Guangxi Zhuang autonomous region, Aug 3, 2021. [Photo/Xinhua]
Staff members work inside the Deqing tunnel of the Guiyang-Nanning high-speed railway in Hechi, South China's Guangxi Zhuang autonomous region, Aug 3, 2021. [Photo/Xinhua]
