Recently, the executive meeting of the State Council held in China focused on flood control and disaster reduction, optimal allocation of water resources, and water ecological protection and restoration. It has studied and deployed the construction arrangements for 150 major water conservancy projects in 2020 and the follow-up, requiring urgent construction, promotion of expansion of effective investment, and enhancement of defense Flood and drought disaster capacity, specific water conservancy projects are as follows:

Jiayan Water Control Project and Northwest Guizhou Water Supply Project

The project is a comprehensive large-scale water conservancy project with urban and rural water supply and farmland irrigation as its main tasks and power generation. Its reservoir scale, irrigation scale, water supply scale and investment scale are the largest in the province's single water conservancy projects, and it is known as Guizhou The "No. 1 Project" of water conservancy construction is also one of the 172 major water conservancy projects constructed step by step by the state during the "13th Five-Year Plan" period. The total length is about 200 kilometers, and the main buildings involved include channels, tunnels, aqueducts, pipelines, etc. At present, the entire line design has been completed.

Datengxia Water Conservancy Project

The project is a landmark project of the country’s 172 major water-saving and water-saving water conservancy projects and a key control project in the Pearl River Basin, with an investment of 35.7 billion yuan. It integrates comprehensive benefits such as flood control, shipping, power generation, water replenishment, salt pressure, and irrigation. Heavy equipment.

Tuoying Reservoir and Irrigation District Project for Drought Control in Zuojiang, Guangxi

This project is one of the 172 major water-saving and water-saving water conservancy projects in the country. The project is a control pivot project in the Zuojiang River Basin and a major infrastructure project in Guangxi to implement the strategy of "dual-core drive and three-region coordination". The main task is irrigation. , Combined with comprehensive utilization of water supply and power generation. The total project investment is 6.6 billion yuan and the total construction period is 48 months. Up to now, the project has completed an investment of approximately 4.055 billion yuan.

Baise Reservoir Irrigation District Project

This project is one of the 172 major water-saving and water-saving water conservancy projects in the country. It is also a major infrastructure project in the Xijiang Economic Belt and a backbone project for the management of drylands in northwest Guangxi and Guangxi.

Pearl River Delta Water Resources Allocation Project

The project, Guangdong's largest water conservancy project and the major water resources protection project in the Guangdong-Hong Kong-Macao Greater Bay Area, has completed a total investment of approximately 2.019 billion yuan since the construction began in May this year. The Pearl River Delta Water Resources Allocation Project is a large-scale water transfer project built to solve the water shortage in the eastern part of the Pearl River Delta and ensure the safety of water supply in the Guangdong-Hong Kong-Macao Greater Bay Area. The total length of the project line is 113.2 kilometers, and three-stage pumping stations including Liyuzhou, Gaoxinsha and Luotian will be newly built for pressure. The average water supply volume of the project design for many years is 1.708 billion cubic meters, the population of the water receiving area is nearly 30 million, the total investment is about 35.4 billion yuan, and the total construction period is 60 months.

Quanzhou Bailai Water Control Project

The preliminary design report of the project was officially approved by the Ministry of Water Resources and entered the stage of comprehensive construction. The project focuses on water supply, combined with flood control and power generation, and creates conditions for improving downstream irrigation and ecological water use. The normal water storage level of the hub is 288 meters, the total storage capacity is 544 million cubic meters, the installed capacity of the power station is 57 MW, and the average power generation capacity for many years is 181 million kWh. The total construction period is 54 months and the total investment is 14.27 billion yuan.

North Hubei Water Resources Allocation Project

The project diverts water from Danjiangkou Reservoir to an average of 770 million cubic meters per year and traverses 270 kilometers of hilly areas in northern Hubei. It solves the problem of drought and water shortage along the route and improves the regional ecological environment. The area between Menglou Town in Laohekou and Qifang Town in Zaoyang is as low as 72 kilometers. The recessed area is the longest continuous inverted siphon project in Asia, and all PCCP pipes are laid.

Xinjiang Altash Water Control Project

This project is one of the 100 major projects during the “Thirteenth Five-Year Plan” period of the country, and is currently the largest comprehensive water conservancy project in Xinjiang. It has a high-face rockfill dam, high seismic intensity, high-slope and dangerous rock mass treatment, and deep riverbed coverage. With the characteristics of “three highs and one deep”, the total investment is 10.986 billion yuan, and the total storage capacity is 2.249 billion cubic meters, which is called the “Xinjiang Three Gorges Project” by the industry.

Anti-seepage project of ancient channel on the left bank of Xinjiang Dashimen Water Control Project

The project is located on the Cheerchen River in Qiemo County, Bayingoleng Mongolian Autonomous Prefecture, Xinjiang. It is a large-scale II project that combines flood control, power generation, and irrigation. The total storage capacity is 127 million cubic meters, the total investment is 1.00881 billion yuan, and the total construction period is 48. Months. The engineering dam is a roller compacted asphalt concrete core dam, which is the first high dam of its kind currently under construction in China. The dam will be closed for storage in 2020.

Xinjiang Dashixia Water Control Project

This project is one of the 12 pilot projects for social capital to participate in the construction and operation of major water conservancy projects. The project is located in the middle and lower reaches of the Kumarak River, a tributary of the Aksu River in the Weiyaksu area, Xinjiang. It is a large (1) type project with a maximum dam height of 247 meters, a dam crest length of 606.5 meters, a total installed capacity of 750MW, and a total project investment of 8.997 billion. yuan. It is understood that the water level of the operating reservoir of the Dashixia Water Conservancy Project has the largest decline in the country, and the construction difficulties will challenge the new height of the concrete face gravel dam in the world.

Introducing the Liaoning Project

This project is the largest water-saving water supply project in Inner Mongolia's water conservancy history. The water conveyance tunnel section of the project adopts the drilling and blasting method + TBM combined construction, and a total of 5 TBMs have been put into use. The "Prairie Lucky" TBM that was excavated this time is mainly used for the construction of long and large hard rock tunnels. After it is officially put into use, it is expected that the average monthly excavation speed can reach 600 meters. The remaining 4 TBMs are expected to be put into use one after another in 2020. It is planned to open up the 46-kilometer water conveyance tunnel in 3 years to ensure that the entire line is completed as planned. With a total investment of 25.216 billion yuan and a total construction period of 56 months, the Yin Chuo Ji Liao Project consists of two parts, the Wen Degen Water Conservancy Project and the water delivery project, with a total length of 390.3 kilometers.

Changtai Fangyang Water Control Project

The project is one of the 172 major water-saving water supply projects in the country, and it is also the first large-scale reservoir project approved by the state in Fujian in the past ten years. The estimated total investment of the project is about 2.302 billion yuan. It is composed of Shangcun Reservoir and Longjinxi Water Diversion Project. It is currently the largest dam in Fujian Province built with RCC technology. It is 338 meters long, 8 meters wide, and 89.3 meters high. .

Tianjiaotan Water Conservancy Project

The construction of the project focuses on industrial water supply, agricultural irrigation, and comprehensive utilization of power generation. The construction period is estimated to be 43 months. The total storage capacity of the reservoir is 194 million cubic meters, and the average water supply to Yangpu Economic Development Zone for many years is 61 million cubic meters, which solves the problem of single water source and long-term development in Yangpu Development Zone; the annual agricultural water supply is 74 million cubic meters, which can effectively solve 114,000 mu The issue of farmland irrigation plays an important role in developing high-efficiency agriculture with tropical characteristics and promoting the sustainable development of regional economy and society.

There are 8 projects in Hainan: Maiwan Water Control Project

Tianjiaotan Water Control Project, Qiongbei Water Supply Project, Nanfan Base Water Conservancy Facilities Construction, Niululing Reservoir Water Resources Allocation Project, Haikou Nandu River Longtang Dam Reconstruction Project, Changhua River Water Resource allocation project, Sansha City water resources allocation project

River Channel Regulation Project of Baguazhou Branch of Nanjing Section of Yangtze River

This project is one of the 172 major water conservancy projects for water-saving and water supply identified by the State Council. Construction started in December 2018. At present, except for the deep trough protection project on the right edge of Zhoutou, which is under construction, and the shore protection project on the right edge of Zhoutou will be implemented after the flood, the rest have been completed. Recently, the project officially resumed work. The main construction contents of the project include: Zhoutou underwater fish mouth reinforcement project; right branch inlet bottom protection project; Zhoutou right edge deep trough protection project; Zhoutou left edge, upper dam section, Zhoutou right edge, Tianhekou section, Yanzi Revetment reinforcement works such as the rock section.

Heihe Huangzangsi Water Control Project

The project belongs to 172 major water-saving and water-supply projects identified by the State Council. The project is located on the main stream of the Heihe River 11km below the intersection of the east and west forks of the upper reaches of the Heihe River, with Sunan County in Gansu Province on the left bank and Qilian County in Qinghai Province on the right bank. The implementation and construction of the project is an important measure to implement the central government's strategy of strengthening ecological and environmental protection, vigorously promoting poverty alleviation and the development of ethnic regions, and is a new milestone in the comprehensive management of the Heihe River Basin.

Continued construction and water-saving renovation project of Guangdong East Irrigation District

The project was included in the list of 172 major national water-saving water supply projects planned and implemented during the 13th Five-Year Plan. The estimated total investment of the project is 3.255 billion yuan, and the designed irrigation area is 694,100 mu, of which 591,100 mu will benefit from the renovation.

Xinmeng River Extension and Dredging Project

The project starts from the Yangtze River in the north and extends along the original Xinmeng River to the Beijing-Hangzhou Canal. After crossing the Beijing-Hangzhou Canal, the newly opened river channel extends south to the Beigan River. The Beigan River is extended to connect Taohu Lake and Chuhu Lake, and Taichu Canal is extended. He Caoqiao River enters Taihu Lake. The purpose of the construction of the extension and dredging project of the Xinmeng River is to improve the water environment of the Taihu Lake and the west of the lake, improve the flood control and drainage standards of the river basin and the region, enhance the water resources allocation capacity of the river basin and the region, and take into account regional shipping. It is one of the country's 172 major water-saving and water-supply projects, and the largest single-investment water project in the province.

Qumutang Reservoir Project

This project is the 172 major water conservancy projects planned and constructed step by step during the 13th Five-Year Plan period, and the irrigation water source and water supply source project in the Comprehensive Plan for the Yangtze River Basin (2012-2030). It is currently the largest irrigation area in Hunan Province. At present, the engineering geological survey has been in full swing.

The Qumutang Reservoir Project is located in the upper reaches of Zishui River in Shaoyang City, Hunan Province. The irrigation area is 1.2171 million mu. The irrigation area is located in the central area of the "Hengshao Arid Corridor", covering 8 counties (districts) in the four cities of Shaoyang, Hengyang, Yongzhou and Loudi. ). The total planned construction period of the Qumutang Reservoir project is 60 months. The total construction period of the hub project is 34 months, and the first unit power generation period is 28 months. The construction of the power plant and ship lock is the key route. The construction period of the irrigation area project is 60 months. The construction schedule of the main canal Jiulongling Tunnel (located in Guzhou Town, Shaoyang County) is the key line, and the construction is carried out in accordance with the basic principle of first main canal, then main canal, and then backbone branch canal.

Recent improvement project of key plain depressions in the Huaihe River Basin in Jiangsu Province

The project has entered the implementation phase. The estimated investment in the recent treatment project of key plain depressions in the Huaihe River Basin in Jiangsu Province is 6.73 billion yuan, including the Lixiahe depression, the Huangdun Lake area and the three depressions in the west of Nansi Lake. The governance scope involves Xuzhou, Suqian, Huaian, Yangzhou, Taizhou, Nantong, In Yancheng, 7 cities and 18 counties (cities, districts), through dredging the rivers in the area, strengthening the embankments, new and rebuilt bridges and culvert gate stations along the route and other supporting structures, restored and improved regional flood control and waterlogging standards, forming a relatively complete flood control and drainage system.

Tianjiaotan Water Conservancy Project

This project is one of the 172 major national water conservation and water supply projects. The total investment of the project is 4.338 billion yuan. It is expected to be completed in 4 years. The project development tasks are mainly industrial water supply, agricultural irrigation, and comprehensive utilization of power generation.

Maiwan Water Conservancy Project of Nandu River, Hainan Province

This project is one of 172 major water-saving water supply projects identified by the State Council. The total investment of the project is 7.36 billion yuan (including 3.79 billion yuan from the central government), and the total construction period is 56 months.

Zhuangli Reservoir

The project is located in Cross River City in the east of Nansi Lake, Shandong Province. It is one of the 172 major water-saving and water-supply projects identified by the State Council. The dam of the reservoir is 3124 meters long and the maximum dam height is 43.9 meters; the approved investment estimate is 3.069 billion yuan, the estimate is increased by 1.258 billion yuan, and the total investment reaches 4.327 billion yuan.

Altash Water Control Project

The project is the largest water conservancy project under construction and one of the 172 major water-saving water supply projects in the country. The gate was closed on November 19 last year, and it is planned to impound 673 million cubic meters of the Yeerqiang River from June 1 to October 31 this year. Flood. The blockage of the Altash diversion tunnel is one of the important tasks of the project this year.

Heshuo County Major Livelihood Water Conservancy Project Bosi Amu Reservoir Project

The project is a key water conservancy project in Xinjiang. Construction started on September 15, 2019. The planned construction period is 36 months. It is expected to be completed before September 14, 2022.

The Xianghe Water Control Project in Tibet and its supporting irrigation area project

This project is one of the country's 172 major water-saving water supply projects and a major project in the "Thirteenth Five-Year Plan" of the Tibet Autonomous Region's water conservancy reform and development. The total investment is more than 2.7 billion yuan. The project is located on the main stream of the Xianghe River, a primary tributary on the left bank of the Yarlung Zangbo River. It is one of the projects of the "National Large Reservoir Construction Plan". It includes the Xianghe River Water Conservancy Project and the supporting irrigation area. The main tasks are irrigation, water supply, and improvement of the ecological environment of the reserve. , Taking into account power generation, has major economic, social and ecological benefits. The project started on April 3, 2019 and is expected to be completed in December 2022. After completion, the total reservoir capacity will reach 113.4 million cubic meters, the controlled irrigation area will be 124,900 mu, the installed capacity of the power station will be 40 megawatts, and the annual power generation will reach 138 million kwh.

Water supply project for poverty alleviation and development of ecological immigrants in central Gansu

The total investment of the project is 4.24 billion yuan, and the water supply scope covers 99 villages in 10 townships and towns in Jingyuan County and Pingchuan District of Baiyin City. At the same time, the Xingdian Irrigation District’s main water delivery channels will be reconstructed and upgraded simultaneously to improve water supply conditions and further increase the water supply guarantee rate of the 140,000 people drinking water projects that have been completed.

Zongyang River Diversion Hub

The construction of the project includes multiple projects such as pumping station, control lock, ship lock, fish crossing facilities, and cross-channel traffic bridge. The construction period of the Zongyang River Diversion Project is 45 months, and the planned completion date is June 30, 2022.

Water Diversion Project of Mazhen, Yulin Yellow River East Line

This project is the No. 1 project of 27 major events in Yulin City, and is also a major infrastructure project during the "13th Five-Year Plan" period of Shaanxi Province and a key construction project in 2019. The project is located in Yulin and Shenmu City. It adopts a government-enterprise cooperation investment construction model. The estimated total investment is 16.079 billion yuan and the planned construction period is 4 years.

Dashixia Water Control Project

The project is one of the 172 major water-saving and water-supply projects identified by the State Council, with a total investment of 8.997 billion yuan. China Energy Construction Gezhouba Group takes the lead of Shenzhen Haoze Infrastructure Investment Partnership (Limited Partnership), the three companies of China Energy Construction Gezhouba Group, the mechanical and electrical company, and the water company to form a consortium responsible for project investment and construction. The project is located in the Aksu region of Xinjiang, with an installed capacity of 750,000 kilowatts and an average power generation of 1.893 billion kWh over the years.

Central City Water Supply Project

The project is the largest water conservancy project in the history of Jilin Province. It is one of the 172 major water-saving and water-saving water conservancy projects of the State Council and one of 44 major projects in the province included in the new round of Northeast Revitalization Strategy. The central water diversion project will be implemented in two phases, the first phase of the construction of the trunk line project and the second phase of the construction of the branch line project. At present, the construction of the first-phase project is progressing smoothly, and the second-phase project is ready to start construction. After the completion of the project, the beneficiary population will exceed 10 million. The second phase of the central water diversion project is also known as the "branch line project". The main construction content includes Jiude branch, Shuangyang branch, Sheling branch, Changchun branch, Nongke branch, Gongzhuling branch, Lishu branch, Siping branch, Yitong branch, Liaodong branch Wait for 10 branch lines. In 2020, all 10 branch lines will be opened.

According to reports, after the implementation of 150 major water conservancy projects, it is estimated that about 9 billion cubic meters of flood control storage capacity will be added, the length of the rivers will be about 2,950 kilometers, the new irrigation area will be about 28 million mu, and the annual water supply capacity will be increased by about 42 billion cubic meters.

As the national flood control enters the stage of "strict control", rainfall in the upper and middle reaches of the Yangtze River is still relatively high, and heavy flood conditions may occur in the middle and upper reaches of the Yellow River, Haihe River, Songhua River, and Huaihe River. significance.Editor/Zhang Jianbing