Brief introduction to the project of large universities entering Qin Dynasty

Introduction of water diversion project from big cities to Qin: Datong River, located at the junction of Gansu and Qinghai provinces, draws water eastward across the basin 120 km, which is a large-scale gravity irrigation project leading the Qinwangchuan basin, 60 km north of Lanzhou City, to realize the dream of Gansu people.

Let a part of Datong River change its flow direction, meekly flow through the valley of Qianshan Mountain, and nourish the dry land of Qinwangchuan according to people's wishes. This grand project is located in the western marginal mountainous area of Gansu Province, with complex geological conditions, arduous project and many lines. The total length of main canal and drainage main canal is 205.7 kilometers, and the total length of 45 branch canals is 67.5 kilometers. There are many buildings, mainly tunnels. There are 77 tunnels in the whole project, with a total length of 1 10 km, of which 3 1 tunnel exceeds 1 km.

29 aqueducts; 3 inverted siphons; There are more than 4500 buildings above the branch canal. The section from the head of Tang Tian Temple Canal in Tianzhu County to the main sluice of Xianglushan on the west bank of Zhuanglang River in Yongdeng County is the main canal, and then the water is delivered to Dongyi Main Canal and Dong Er Main Canal, and 45 branch canals are delivered to Qinwangchuan Irrigation District. The total length of the trunk and branch canals is 868 kilometers, which is 3.7 times the length of the project of "Diversing Luanhe River into Tianjin".

meaning

For Gansu, a large number of water diversion projects into Qin have far-reaching political significance and great social and economic benefits. It is a great achievement that benefits the present and the future, and plays an important role in social stability and long-term stability. After the project is completed, 860,000 mu of farmland will be irrigated. If water-saving irrigation is adopted, the effective irrigation area will exceed 6.5438+0 million mu, turning the former desert into fertile land, not only solving the problem of food and clothing for more than 300,000 farmers, but also resettling immigrants from the arid and poverty-stricken areas in central Gansu.

A large number of water diversion projects into Qin will be connected with Jingdian and Xicha electric irrigation projects, which is of great significance for building a stable and high-yield grain base in the upper reaches of the Yellow River, realizing the self-sufficiency of grain in Gansu and the development proposed by the central government, building a multi-ethnic economic zone in the upper reaches of the Yellow River and developing the western region.