The No. 2 inclined shaft of Yiliang tunnel of Chongqing-Kunming high-speed railway has been successfully completed, and the main tunnel of the world's longest high-speed railway tunnel with a speed of 350 kilometers per hour has entered the stage of const

Thank you CTOnews.com netizens for your clue delivery! According to China Railway, the No. 2 inclined shaft of the Yiliang Tunnel of the Chongqing-Kunming high-speed railway was successfully completed on September 23, and the main tunnel of the world's longest high-speed railway tunnel with a speed of 350km / h has entered the stage of construction, CTOnews.com reported on September 23.

CTOnews.com learned that the Chongqing-Kunming high-speed railway (Chongqing-Kunming high-speed railway) is 699km long, starting from the Chongqing West Railway Station, via Chongqing, Sichuan, Guizhou and Yunnan provinces, and connecting to Kunming South Railway Station. A total of 21 stations are planned with a designed speed of 350km per hour.

The Yiliang Tunnel is a controlled project of the Chongqing-Kunming high-speed railway, with a total length of about 24.8 kilometers. It is currently the longest high-speed railway tunnel under construction at 350 kilometers per hour in the world.

The Chongqing-Kunming high-speed railway is an important part of the Beijing-Kunming channel, one of the main channels of the "eight vertical and eight horizontal" high-speed railways in China. After it is completed and put into operation, it will further strengthen the relationship between the Shuangcheng economic circle in the Chengdu-Chongqing area and the urban agglomeration in central Yunnan, greatly reduce the train running time from Chongqing to Kunming, and promote high-quality economic and social development along the line.