The Dianzang Railway Lixiang Section Haba Snow Mountain Tunnel is in the front of the cave in the cave

Xinhua News Agency, Beijing, July 27. The reporter learned from the China Railway Kunming Bureau Group that on the 27th, the construction of the Lijiang to Shangri -La section of the Yunnan -Tibet Railway made significant progress.The entire control project of the Haba Snow Mountain Tunnel of the Harba Snow Mountain Tunnel, which was constructed by the China Railway 16th Bureau Group, was connected, laying a solid foundation for the early penetration of the tunnel.

Tian Weiquan, manager of the Lixiang Railway Project Department of China Railway 16th Bureau Group, introduced that the Haba Snow Mountain Tunnel is located in the territory of Diqing Tibetan Autonomous Prefecture, Yunnan Province.Affected by the high ground stress, the structure of the sector structure, and the fracture band activity, geological problems such as rock -soluble and soft rock deformation during the construction process were prominent.The middle guide hole is to hit a relatively small hole in the positive hole. During the deformation process, the stress is released, and then the positive hole is expanded.

The Lixiang section of the Yunnan -Tibet Railway is 139 kilometers long and the design speed is 120 kilometers per hour. After the opening of the traffic, it takes only 1.5 hours from Lijiang to Shangri -La, and it takes about 5 hours from Kunming to Shangri -La.

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