Joke Collection Website - Mood Talk - What kind of railway builder is Qinghai-Tibet Railway? What difficulties did he encounter in the process of building the Qinghai-Tibet Railway and how did he overcome them?

What kind of railway builder is Qinghai-Tibet Railway? What difficulties did he encounter in the process of building the Qinghai-Tibet Railway and how did he overcome them?

Frozen soil, cold and lack of oxygen and ecological fragility are three major difficulties. "Replacing roads with bridges" has solved the problem of subgrade stability in permafrost regions on the plateau, and also provided a free migration channel for wild animals such as Tibetan antelopes. Construction workers carry 5 kg oxygen cylinders and work while inhaling oxygen; Adopt environmental protection energy mainly including electric energy, solar energy and wind energy for heating.