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“引大入秦”工程是将位于甘肃省、青海省交界的 大通河水跨流域调到兰州市以北60km处的秦王川的一项大型自流灌溉工程。这是一项把巨大困难和美好前景联系在一起的工程,“引大入秦”工程投资巨大,1985年工程投资概算为10.653亿元,其中世界银行贷款1.23亿美元,其余由甘肃省筹措。 “引大入秦”总干渠渠首在天祝县天堂寺,全长 87km,干渠上33座隧洞总长75km,占干渠总长度的 86.2％,另有两条干渠,东一干渠全长47km,东二千
The project of “Attracting Large Quotations to Qin” is a large-scale gravity flow irrigation project of Qinwang River that transfers the Datong River at the junction of Gansu and Qinghai provinces across the basin to 60 km north of Lanzhou City. This project is a project linking great difficulties with a bright future. The project of “Attracting Great Import into Qin Province” has a huge investment. In 1985, the estimated investment for the project was 1.0653 billion yuan, of which the World Bank loans was 123 million U.S. dollars and the rest was raised by Gansu Province. The head canal of Tianhe County, a total length of 87km, has 33 tunnels covering a total length of 75km, accounting for 86.2% of the total length of the trunk canal. There are also two other main channels, with a total length of 47km, East two thousand