The heavy weapon of the country "hold hands" to build the main skeleton of the national water network

The heavy weapon of the country "hold hands" to build the main skeleton of the national water network

——The writing in the construction of Jianguhan and Hanfu project

On July 7, Danjiangkou City, Hubei Province, the highly anticipated river -re -Han Dynasty project opened the construction.

As the first construction project of the subsequent project of the South -to -North Water Diversion, the leading Jiangsu and Hanfu project is an important iconic project to comprehensively promote the high -quality development of the South -to -North Water Diversion project and accelerate the construction of the main skeleton and arterial artery of the national water network. This project will connect the two "heavy weapons of the country" in the South Water and the Three Gorges Project. According to estimates, after the completion of the project, the average number of north -time water transfer in the South Water and North Diversion Middle Line will increase from 9.5 billion cubic meters to 11.51 billion cubic meters.

"Big Water Tank" connects the "Basin" to achieve north and south interests, and

In December 2014, the first phase of the mid -line project of the South -to -North Water Diversion Middle Line marked the full water through the southwater and the first phase of the middle line. For more than 7 years, the southwater and north areas have been adjusted to the east and the mid -line project. The water has been adjusted by more than 54 billion cubic meters. More than 40 large and medium -sized cities along the line have used the southwater in more than 280 counties and cities, and the beneficiary population exceeds 140 million people.

When the northern land is moisturized by the sweet southern water, people have thought about such a question: Is there sufficient water in the water source, can the southern water be so continuous and "do not give up day and night" to the north? Experts point out that once the year of the Hanjiang River is encountered, the amount of water from the Danjiangkou Reservoir is small, and it is difficult to fully meet the needs of water transfer to the north without affecting the basic water in the middle and lower reaches of the Han River.

The open source set up an important agenda for promoting the high -quality development of the subsequent project of the South -to -North Water Diversion. Where is the open source? People set their sights on the Three Gorges Reservoir in the Yangtze River.

If the annual average water entry water is 37.4 billion cubic meters, the total library capacity is 33.9 billion cubic meters, and the Danjiangkou Reservoir with a regulating database of 19.05 billion cubic meters is compared to the "big water basin" in the Hanjiang River Basin, then the average number of water entry water in the warehouse exceeds 400 billion yuan The Three Gorges Reservoir, which is 45 billion cubic meters of cubic meters, total library capacity, and 22.15 billion cubic meters of regulating library capacity, is the "large water tank" of the Yangtze River Basin, and it is a "large water tank" with abundant water volume.

What will happen to the "Big Water Tank" and "Basin"? "Through the implementation of the river -replenishment project, connecting the heavy weapons of the two major countries of the South -to -North Water and the Three Gorges Project, it will play an important role in ensuring the security of national water security, promoting economic and social development, and building a new development pattern of services." It is pointed out that the implementation of the river -replenishment project will further open up a new channel for water to the north of the Yangtze River, and provide better water protection for the Hanjiang River Basin and the Beijing -Tianjin -Hebei and Henan regions, and achieve the two benefits of the north and south.

At the construction site, Niu Xinqiang, an academician of the Chinese Academy of Engineering and the chairman of the Yangtze River Design Group, said that the leading Jiangjiaohan project will be closely linked to the two major "heavy weapons of the country" of the Southwater and the Three Gorges Project. The contradiction between the supply and demand of resources and the weakening of water resources in the Hanjiang River Basin area and the problems of water ecological environment in the middle and lower reaches of the Hanjiang River.

On -site survey of secrets, the preliminary feasibility study strives for the optimal solution

It is not easy to start a project. How is geological condition? What difficulties to break through? How to choose the engineering route? All must be discussed in the early stage of science. Specific to the Jiangjiahan project, the line is long and deep, the mountains along the line are deep, the fault folds are developed, and the soft rocks and soluble rocks are widely distributed. The terrain and geological conditions are very complicated. The outstanding geological problems are real challenges faced in the early feasibility study of the project.

Geological survey, scale demonstration, line comparison ... Niu Xinqiang led the team to be busy, comprehensively considering factors such as terrain geology, water collection conditions, and social environment, and strive to find the optimal solution.

At the field of the wild, the survey work was intensive, and the basic results obtained were sent to the rear as soon as possible in order to quickly carry out analysis and judgment. In the rear, professionals such as planning, aquatic industry, and construction work overtime to conduct engineering scale demonstration and engineering layout research, and the content of the on -site operators will be notified in time.

Between the fields and dense jungles in the mountains, thousands of engineers use aviation testing, conventional drilling, composite directional drilling, earth electromagnetic and other means to conduct a comprehensive "physical examination" of more than 8,000 square kilometers in the engineering area. The strong rock -soluble area and a huge broken zone of the tunnel disaster have laid a solid foundation for finding the best line.

Through technology and economic comprehensive comparison, the plan is determined! The Yinjiang Buhan Project takes water from the left bank of the Three Gorges Reservoir in the Reservoir of the Yangtze River. It is the long -distance long -distance water tunnel project with the most comprehensive difficulty in my country.

At the same time, the Ministry of Water Resources Planning and Planning Department and other departments also refine the key nodes of projects to promote the full -chain of projects such as pre -review, project environmental assessment, research approval, and start -up time of the project, and clarify the division of responsibilities, work measures and timetables, and roadmaps. Account management and accurately promote the preliminary work of the project. "The project of attracting the river and supplementing Han is an important project to implement the decision -making and deployment of the Party Central Committee and the State Council. Under the premise of compliance in accordance with laws, we must strengthen the synergy, keep an eye on the construction goals, and promote the successful establishment of the project." The Ministry of Water Resources Planning Zhang Xiangwei, director of the Division of the Planning Division, said.

Weaving the National Water Network, helping to stabilize growth and promote employment to benefit people's livelihood

It is planned to connect the east, middle and western lines with the Yangtze River, Yellow River, Huaihe River, and Haihe River. Together with the "four horizontal, three vertical, north -south deployment, and east -west" large water network, it is an important part of the National Water Network. However, compared with the planning goals, the first phase of the first phase of the east and middle line of the south and the north water transfer needs to be continued to make up the network to further improve the ability to allocate South Water Resources. "The construction of the Jiangsu and Han Dynasty project marks the beginning of the construction of the subsequent project of the South -to -North Water Diversion. Promote the project planning of the Western Line and actively cooperate with the overall planning and editing work. Give full play to the role of the northwater transfer project to optimize the allocation of water resources, ensure the safety of the people's drinking water, recover the ecological environment of the river and lake, and unblock the life line of the North -South economic cycle.

At the same time as the weaving National Water Network, as a major water conservancy project, the construction of the river supplementation project is a microcosm of the comprehensive acceleration of water conservancy construction in my country since this year. It is understood that the total length of the Jiangzuhan and the Han Dynasty was 194.8 kilometers, the total construction period was 9 years, and the total static investment was 58.235 billion yuan. Major water conservancy projects have the advantages of absorbing large investment, long industrial chain, and creating a lot of employment. Studies have shown that each investment of major water conservancy projects can drive GDP by 0.15 percentage points for each investment, and 490,000 new jobs are added. A number of major water conservancy projects represented by the Jianguhan and Hanfu project have recently started construction, which has played a positive role in boosting confidence, stabilizing social expectations, and stable growth and employment to benefit people's livelihood.

With the pace of construction of water conservancy infrastructure, the national water network painting rolls that are "complete, safe and reliable, intensive, green intelligence, unobstructed, and orderly regulation" are slowly unfolding.

(Reporter Chen Chen Zhang Rui Xiajing)

【Edit: Chen Wentao】

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