The Chengdu-Chongqing Intercity High-Speed Railway Shuan Tunnel was successfully connected today.

The Chengyu Middle Line high-speed railway is an important part of China's "Eight vertical and eight horizontal" high-speed rail network along the Yangtze River corridor. This morning, in the key engineering project of the Chengyu Middle Line high-speed railway, the Sichuan-An tunnel spanning nearly 10 kilometers across the Chengdu city center will achieve full line connection, which also means that all 41 tunnels of the Chengyu Middle Line high-speed railway have been fully connected.