The purpose of constructing the Qinghai-Tibet Railway with bridges instead of roads is to protect local wildlife and the ecological balance of the area. The Qinghai-Tibet Railway passes through the Coco Sicily No Man's Land and the Sanjiangyuan National Nature Reserve, which is the habitat of rare wildlife such as Tibetan antelopes, wild yaks, Tibetan donkeys and white-lipped deer.
In order not to affect the "life" of these wild animals, to ensure that migratory, foraging wildlife smoothly across the Qinghai-Tibet Railway, the Qinghai-Tibet Railway construction unit to seek the views of relevant experts, the use of "under the bridge",
The construction unit of the Qinghai-Tibet Railway consulted with relevant experts and adopted the methods of "under the bridge", "above the tunnel" and "gentle slope leveling" to build 33 wildlife passages along the whole line of the Qinghai-Tibet Railway.
Extended information:
The construction of the Qinghai-Tibet Railway began with strict regulations on the disposal of domestic garbage and sewage. In the Tibet Amdo base China Railway 11 Bureau site, there is a special sewage treatment pool, production, living sewage after precipitation treatment to meet the discharge standards before discharge, solid waste is classified and processed.
The Qinghai-Tibet Railway Golmud-Lhasa section is 1,142 kilometers long, and wherever it passes through a nature reserve, the construction of the railroad follows the principle of "avoiding the bypass" for planning. Construction site, gravel quarry site and the width of the right-of-way have been repeatedly surveyed to determine, as far as possible to avoid damage to vegetation.
People's Daily Online--The Qinghai-Tibetan Railway is building an ecological and environmental protection project for animals.