State through train： full resumption of work and production! On May 1 ST, the construction period was rushed, and several major projects in China were accelerated-State-owned Assets Supervision and Ad

On the May 1 ST International Labor Day, many workers stick to their jobs and spend the holidays in labor. China News Agency issued Tang Dehong photo

In China, the spread of local epidemic has been basically blocked, and the epidemic prevention and control has achieved important results in stages. All parts of China have quickly resumed work and production, and several major projects have shown a trend of speeding up. Many projects are still working overtime to catch up with the construction period during the May Day holiday.

No vacation! The navigation project with the largest fluctuation of water level in the world is about to be fully commissioned.

The control project of navigation construction in Wujiang River Basin-Goupitan Navigation Project of Huadian Wujiang Company officially resumed work and will soon enter the stage of comprehensive debugging.

The navigation project of Goupitan Hydropower Station of Huadian Wujiang Company is a key project of Guizhou Province’s integration into the national strategy of "Belt and Road" and "Yangtze River Economic Belt", which has many world firsts: the navigation head is 199 meters, and the upstream navigation water level fluctuates by 45 meters, which is the navigation facility with the highest navigation head, the largest water level fluctuation and the most complicated navigation channel in the world; The first and third vertical ship lifts are launched, which is the largest launched ship lift in China. The second-stage vertical ship lift has a lifting height of 127 meters, which is the largest vertical ship lift in the world at present, more than 10 meters higher than the famous "super elevator" of the Three Gorges Dam.

Goupitan Hydropower Station has a total installed capacity of 3 million, which is a landmark project for the country to implement the strategy of "transmitting electricity from west to east". As of December 31, 2019, the power station has been put into operation for the tenth anniversary, with a cumulative power generation of 79.571 billion kWh and a tax payment of 3 billion yuan, which has greatly promoted local economic development. After the navigation project of Goupitan Hydropower Station is officially put into operation, the "Golden Waterway" of Wujiang River will extend upstream for 137 kilometers, and a 500-ton ship can go straight, transporting materials from Guizhou Zunyi to Chongqing Fuling and merging into the Yangtze River, with a total length of 594 kilometers.

At present, Huadian Goupitan Power Station Construction Co., Ltd., on the premise of doing a good job in the prevention and control of normalized epidemic situation, has made every effort to advance the progress of ship lift equipment debugging and computer room decoration. At the same time, in order to make up for the delayed time, during the May Day period, all the participating units, more than 200 construction managers and construction workers of this project voluntarily gave up their vacation opportunities to prepare for the next first-stage ship lift’s cabin wire rope connection construction and the second-stage ship lift’s drum wire rope hanging.

Chasing the construction period! China Petroleum China-Russia East Line Project launched a hundred-day attack.

The Sino-Russian East Line (Changling-Yongqing) passes through 30 counties and districts in 12 cities in five provinces (cities, autonomous regions) of Kyrgyzstan, Mongolia, Liaoning, Hebei and Tianjin, with a total length of 1,110 kilometers, of which the Changling-Shenyang section has a pipe diameter of 1,422 mm and a line length of 345.6 kilometers. The Shenyang-Yongqing section has a pipe diameter of 1,219 mm and a line length of 764.4 km. There are 9 stations and 48 valve rooms along the line, with 34 large and medium-sized rivers crossing, 34 railways crossing and 105 grade highways (county roads and above) crossing.

At present, the mid-section project has been fully resumed at the end of March and the construction has been accelerated. As of April 26th, 678.482 kilometers (53,908 crossings) of line welding have been completed, and 8 stations have been started.

From April 20th, the first phase of the "100-day attack" battle was launched on the East Line of China and Russia. The goal was to complete the main welding task of the line from April 20th to July 31st, and the comprehensive ergonomics such as anti-corrosion and trench backfilling could meet the requirements of subsequent construction, while the quality, safety and environmental protection were controlled.

Despite the May Day holiday, all the participating units are optimizing and refining the construction organization, striving to recover the construction period affected by the epidemic at the beginning of the year and strive to complete various construction tasks. It is planned to complete a total of 730 kilometers by May 6.

China-Laos Railway Manmai No.1 Tunnel is connected after the festival.

China-Laos Railway is an important part of China’s important international railway passage to Laos and Thailand, and an important infrastructure for Yunnan to integrate and serve the national "Belt and Road" construction and promote interconnection with neighboring countries. The railway starts from Yuxi in the north and ends at Mohan, the border port between China and Laos in the south, passing through Yuxi, Pu ‘er, Xishuangbanna and other cities. The total length of the main line is 508.53 kilometers, and the design speed is 160 kilometers per hour. It is a national railway I electrified railway. After it is completed and opened to traffic, it only takes more than three hours from Kunming to Jinghong, Xishuangbanna Dai Autonomous Prefecture.

Among them, Manmai No.1 tunnel has a total length of 3,605 meters, and the maximum buried depth of the tunnel body is 291 meters. The geological conditions of the tunnel are complex, with the characteristics of "three highs" (high geothermal energy, high geostress and high seismic intensity) and "four actives" (active neotectonic movement, active geothermal water environment, active external dynamic geological conditions and active shallow reconstruction process of bank slope). Due to the complex geological structure, tunnel construction is prone to collapse, falling blocks and other diseases, which makes the construction difficult.

However, the latest news shows that the Manmai No.1 tunnel in China-Laos Railway Station, which was built by China Railway Construction, will be completed from May 5 to 7.

The first large-diameter shield machine of Chinese enterprises overseas started after the festival.

On May 5, local time, the first overseas large-diameter shield project of China enterprises-the "Victory" shield machine of the large shield project in the east section of the third interchange ring road of Moscow Metro will be officially launched.

This project is the first time that a China enterprise has carried out a large-diameter shield project of more than 10 meters in overseas markets. The project adopts the 10.8-meter large-diameter earth pressure shield machine "Shengli" independently developed and manufactured by China Railway Construction, and is scheduled to start on May 5, 2020.

The project is located in the eastern part of Moscow city, with a total length of 2.947 kilometers and a contract value of 5.6415 billion rubles, or about 540 million yuan.

Under the severe epidemic situation in Moscow, all employees of China Railway Construction in China stick to their posts, and make overall plans to promote epidemic prevention and control and engineering construction, which shows the responsibility of Russian enterprises to keep their promises and fulfill their contracts.

The largest wharf project under construction in the Yangtze River completed the main handover after the festival.

Taicang Port Area is an important part of Shanghai International Shipping Center, a hub port for river-sea combined transport, the largest foreign trade port in Jiangsu, the largest container transport port in the Yangtze River, and the first inland river port in China to fully realize harbor management.

The fourth phase project of Taicang Port, undertaken by CCCC No.3 Navigation Bureau, includes four 50,000-ton container berths and related supporting facilities, with an annual design capacity of 2 million TEUs.

Upon completion, the container throughput capacity of Taicang Port will be increased by nearly 50%, which will further enhance the ability of Taicang Port to serve the construction of the Belt and Road and the development of the Yangtze River Economic Belt.

The 70-meter antenna reflector of the ground application system of Mars exploration mission was successfully hoisted.

GRAS-4 antenna (70m) system of National Astronomical Observatory of Chinese Academy of Sciences is the ground application system of the first Mars exploration mission, and it is an antenna developed and built according to the highest international design requirements. Upon completion, it will become the largest aperture antenna in the Mars exploration data receiving system of the National Astronomical Observatory of Chinese Academy of Sciences, and the second largest movable antenna in the world and the largest in Asia, so as to realize data reception and real-time control in the Mars exploration mission.

China Electric Power Network Communication Sub-group No.39 Institute developed and built a 70-meter antenna reflector.

Jing Meng, secretary of the Party branch of Workshop 203 of the Manufacturing Department, the general commander of the installation site, said, "To overcome all kinds of difficulties, we must not only have a strong heart, but also have a strong team." In strict accordance with the requirements of governments at all levels in urban towns, he led the engineering team to actively carry out on-site epidemic prevention work, disinfected and tested the engineering team members and the construction environment to ensure the normal production and living order of the engineering team.

A few days ago, the 70-meter antenna reflector was successfully hoisted, which further promoted the pace of deep space exploration in China.

[Editor: Li Zihong]