2. Most of the Qinghai-Tibet Railway is located in high altitude areas and "life forbidden zones". The construction of Qinghai-Tibet Railway faces three major world railway construction problems: geological structure of thousands of miles of frozen soil, cold and oxygen-deficient environment and fragile ecology.
Third, the solution
1. In order to solve the frozen soil problem, Chinese scientists have taken measures such as replacing roads with bridges, flaky ventilation subgrade, ventilation tube subgrade (active cooling), gravel and flaky slope protection, hot rods, insulation boards, and comprehensive waterproof and drainage systems. It has solved the problems caused by thousands of years of frozen soil.
2. In order to overcome the harsh environment of cold and lack of oxygen and ensure the life and health of railway builders. The Ministry of Railways and the Ministry of Health jointly issued the following documents for the first time in the history of China's engineering construction, specifically making detailed provisions on medical and health security, and invested nearly 200 million yuan to establish medical and health security points across the line.
3. The Qinghai-Tibet Railway passes through China National Nature Reserve, such as Hoh Xil, Sanjiangyuan and Qiangtang. Because it is located on the roof of the world, its ecological environment is sensitive and fragile. In this regard, the Qinghai-Tibet Railway has always adhered to the concept of "environmental protection first" from design, construction to operation and maintenance. For example, in order to protect the living environment of wild animals such as Tibetan antelope, 33 special passages for wild animals have been established across the railway;
In order to protect the wetland, the world's first artificial wetland was built in the alpine region; In order to protect the landscape along the line and realize "zero pollution" on the ground and trains; In order to improve the ecological environment along the line and create a "green corridor" thousands of miles away. These unique environmental protection design, construction and operation concepts also make the Qinghai-Tibet Railway the first "environmental protection railway" in China.
Extended data:
The strategic significance of building the Qinghai-Tibet Railway;
When the Central Committee of the Communist Party of China and the State Council decided to build the Qinghai-Tibet Railway, the most important thing was to speed up the economic development in Tibet. As we all know, Qinghai-Tibet is the only administrative region in China that is inaccessible by railway, and it is very difficult to contact with the outside world, which restricts its economic development. There are also air and road links with Tibet.
However, the transportation of large-scale materials is still difficult to adapt to the communication of a large number of passengers. Therefore, the primary purpose of railway construction is to provide strong transportation support for Tibet's economic and social development;
At the same time, the construction of this railway will enable us to further increase the close ties and exchanges between the mainland and Tibet, enhance national unity, and enable China to achieve the goal of building a well-off society in an all-round way.
Baidu encyclopedia-Qinghai-Tibet railway
People's Network-Qinghai-Tibet Railway has become the development engine of "the roof of the world"