1, Qinling Zhong Nanshan Highway Tunnel
Also known as Qinling Zhongnanshan Tunnel and Zhongnanshan Tunnel, it is the longest double-tunnel highway tunnel in China, the second longest in Asia and the third longest in the world.
2. Jinpingshan Tunnel
Jinping Tunnel Project is located in the middle of Jinping River, one of the three major river bends, on the main stream of Yalong River at the junction of Muli, Yanyuan and Mianning counties in Liangshan Yi Autonomous Prefecture, Sichuan Province.
3. Cangshan Tunnel
Micangshan Tunnel is a control project of Bashan Expressway. The total length of Micangshan Tunnel is 13.8 1 km, including 3 km in Shaanxi and 10.8 km in Sichuan. 20 18 was fully connected with Micangshan Tunnel of Shaanxi-Shaanxi Expressway on August 9th.
4. Xishan extra-long tunnel
Xishan Extra-long Tunnel is located on Taigu Expressway from Taiyuan to Gujiao, Shanxi Province. Tunnel length 13.6 km. As the first batch of risk assessment pilot projects of the Ministry of Transport, the construction is extremely difficult.
5. New Erlangshan Tunnel
The new Erlangshan tunnel was officially started on August 20 12, and was completed and opened to traffic on September 26/20 17, connecting tianquan county of Ya 'an City and Luding County of Ganzi Prefecture. It is the first super-long expressway tunnel from Chengdu Plain to Tibet.