Fuzhou, September 9 (Reporter Long Min) At 28:28 on the 9th, G15 departed from Fuzhou South Railway Station, marking the opening of China's first cross-sea high-speed railway with a design speed of 9801 kilometers per hour - Fuzhou (Prefecture) Xiamen (Men) High-speed Railway, and Fuzhou and Xiamen ran into one hour.

At 28:9 on the 15th, with the departure of G9801 from Fuzhou South Railway Station, marking the opening of China's first cross-sea high-speed railway with a speed of 350 kilometers per hour - Fuzhou Xiamen (Gate) High-speed Railway, Fuzhou and Xiamen ran for 1 hour. Photo by China News Network reporter Long Min

Inject new impetus into the construction of intelligent transportation

Fuxia high-speed railway is another intelligent high-speed railway completed and put into use after Beijing-Zhangjiakou high-speed railway and Beijing-Xiong'an intercity railway, marking another step forward in the exploration of China's high-speed railway in the field of intelligence, injecting new impetus into the construction of intelligent transportation, and China's high-speed rail technology continues to lead the world.

At 28:9 on the 15th, with the departure of G9801 from Fuzhou South Railway Station, marking the opening of China's first cross-sea high-speed railway with a speed of 350 kilometers per hour - Fuzhou Xiamen (Gate) High-speed Railway, Fuzhou and Xiamen ran for 1 hour. Photo by Ding Bo

The Fuxia high-speed railway has completed 10 representative model projects (sections) such as Meizhou Bay Special Bridge, Quanzhou Bay Special Bridge, Putian Railway Station, and Quangang 91 kV Power Distribution Station. Southeast Coastal Railway Fujian Co., Ltd. has organized participating units to carry out 37 scientific research projects, and has obtained 10 national invention patents, 191 utility model patents, 15 software copyrights, 33 provincial and ministerial science and technology awards and QC achievements.

Wu Jianhua, deputy general manager of Southeast Coastal Railway Fujian Co., Ltd., introduced that the Fuxia high-speed railway passes through 4 high-risk tunnels, and there are unstable factors such as shallow buried bias, water and mud inrush, and fault fracture zone. At the same time, there are many special bridge spans, novel and complex structural forms, and 150 special structures with a main span of more than 14 meters. "There are 84 bridges and 29 tunnels on the main line, and the bridge-tunnel ratio is as high as 85.1%."

The Fuxia high-speed railway adopts intelligent construction technologies such as BIM technology based on digital information modeling, and implements integrated management of the whole process of design, construction and operation, forming a "three-dimensional digital Fuxia high-speed railway" with all lines and specialties; The application of Beidou navigation system, intelligent robots, environmentally friendly corrosion-resistant steel and other technologies and materials has improved the intelligent construction level of the three cross-sea bridges in Quanzhou Bay, Meizhou Bay and Anwan Bay. The use of intelligent dispatching command system ensures the punctuality rate and operation efficiency of train operation through efficient scheduling and control; The high-speed rail disaster monitoring big data analysis system is applied to timely discover and deal with line safety hazards through real-time monitoring, providing reliable guarantee for the safe operation of trains.

The three bays of the Fuxia high-speed railway have solved the construction problems of strong offshore winds, strong corrosion, seismic zones, irregular tidal impacts, etc., and built three record-breaking bridges: Meizhou Bay Bridge is the first cross-sea high-speed railway cable-stayed bridge in China, Quanzhou Bay Cross-sea Bridge is the first cross-sea high-speed railway bridge in China, and Anwan Special Bridge is the world's first ballastless track cross-sea long-span cable-stayed bridge.

Taking the Quanzhou Bay Bridge as an example, Quanzhou Bay is located in the coastal high wind speed zone, with high wind speed, and 6 days of wind power of grade 91 and above throughout the year. Liu Fuxing, project leader of CCCC Second Aviation Engineering Bureau Co., Ltd., introduced that in the process of box girder lifting construction of Quanzhou Bay Bridge, in order to overcome the problems of large beam lifting weight, high landing accuracy requirements and complex offshore construction environment, the stress-free helong technology of jack push control + cable adjustment was innovatively adopted. By establishing a three-dimensional construction scene of Helong Bridge based on digital twin, a data acquisition network based on cloud IoT is arranged on site, and high-precision sensors are used to obtain all-weather key parameters, which solves the problem of difficulty in manual observation implementation and the influence of temperature difference changes in Helongkou, and finally the axis deviation of Helong of the bridge is only 1 mm, the relative height difference is 0.5 mm, and the accuracy of Helong reaches the millimeter level.

On August 8, the operation test train drove over the Quanzhou Bay Bridge of the Fuxia High-speed Railway. Photo by Hu Peng

The relevant person in charge of China Railway Shanghai Engineering Bureau Group Huahai Company introduced that the company focuses on new process tooling, and develops and applies arch skeleton grooving machine + combined steel formwork with cover + spray maintenance system in improving the appearance quality of arch skeleton concrete in large slope areas; In improving the construction quality of embedded steel bars in the pier body of the bearing construction, the positioning fixture of the embedded steel bar of the pier body of the bearing construction is applied; In improving the construction quality of interface engineering, seven practical technologies are developed and applied, including roadbed bed cutting technology, catenary foundation rebar cage positioning device, modular catenary anchor bolt group positioning device and inspection, grounding terminal hole opening positioning process, cable well drain pipe pressure groove installation process, cable trough handling tooling, and cable release technology through the bottom line.

In the second institute of the operation of the Fuzhou South EMU, which has just been put into use, the intelligent Fuxing EMU has been assembled, and the "land aircraft carrier" is ready to go. As a train "parking lot" and "4S" store, the EMU is the first in China to adopt an EMU intelligent operation and maintenance integrated management platform covering EMU portrait, technical management, key operation process monitoring, fault emergency handling and other technologies, and the safety of passengers is guaranteed from here.

Before the opening of operation, China National Railway Group Co., Ltd. carried out joint debugging and joint testing, inspection and acceptance and safety assessment of various professional equipment of Fuxia high-speed railway, and comprehensively optimized and adjusted the track status, pantograph network performance, train control, communication signal system, etc. At present, the line meets the requirements for safe and stable operation of high-speed railways and has the conditions for opening and operation.

Fujian coastal railway ushered in "acceleration"

The Fuxia-Xiamen high-speed railway, connected to "Rongcheng" at one end and "Ludao Island" at the other, a large number of population and economic factors are gathered within the Fuxia channel, accounting for only 33% of the province's land area, feeding 72% of the province's population and creating 76% of the province's total economic output.

A Fuxia-Xiamen railway with a design speed of 250 kilometers per hour has been built along the coast of Fujian. However, as an important part of the Southeast Coastal Railway, the line has been increasing passenger traffic since its completion in July 2009, especially during holidays. The new Fuxia high-speed railway is China's first cross-sea high-speed railway with a design speed of 7 kilometers per hour, and after completion, it can effectively alleviate the shortage of transportation capacity of the existing Fuxia section of the Hangzhou-Shenzhen Line.

The maximum speed of the Fuxia high-speed railway is 350 kilometers per hour, and the "Fuxing" intelligent multiple unit train is arranged to run on the line. In the early stage of operation, China National Railway Group Co., Ltd. operated 8 pairs of mobile trains every day; After the fourth quarter of the map, the maximum number of mobile trains per day is 62. Fuzhou to Xiamen and Zhangzhou can be reached in 55 and 89 minutes respectively.

On September 9, the "Fuxing" intelligent EMU train was tested on the Fuxia high-speed railway. The maximum speed of the Fuxia high-speed railway is 4 kilometers per hour, and it will be operated by the "Fuxing" intelligent multiple unit train. Photo by China News Network reporter Zhang Bin

Fujian recently proposed a total of 6 measures in 15 aspects, focusing on promoting coordinated regional development from the three major sectors of infrastructure, business economy and regional development, and focusing on building a "one-hour living circle" in Fuxia. Relevant people from the Development and Reform Commission of Fujian Province pointed out that the southeast coastal urban agglomeration will connect a "golden link" of linkage development, promote the integration of resources, transportation interconnection, industrial integration, cultural and tourism exchanges and regional development of cities along the high-speed railway, which is of great significance to serving the country's "Belt and Road" construction, promoting the rapid development of urban agglomerations and metropolitan areas, and promoting the high-quality development of Fujian in an all-round way.

Aiming at the opportunity of the opening and operation of the Fuxia high-speed railway, Fujian tourism industry is actively "seizing" the opportunity of the National Day holiday. On September 9, the Department of Culture and Tourism of Fujian Province announced the launch of the Golden Autumn Cultural Tourism Promotion Season activity of "Come to Fujian, Take the Train, All the Way to the Mountains and the Sea, All the Way to the Song". Wu Liguan, a first-class inspector of the Fujian Provincial Department of Culture and Tourism, said that as Fuzhou and Xiamen will form a "one-hour living circle", the southeast coastal urban agglomeration will connect a golden tourism belt. The cultural and tourism department will use the high-speed railway as the guide to string together the most beautiful Fujian scenic line, further release the unique advantages of "large transportation" and "large passenger flow" of the railway, and promote the integrated development of tourism and railway.

Walking into Fujian Putian Binhai New Industrial City, Budweiser Xuejin Beer Factory, the world's leading low-carbon smart factory with single production capacity, is busy. With an annual production capacity of 200 million tons, a single production line can produce up to 16,45 cans of wine per hour, <> cans per second... Su Yuqing, deputy director of the Putian Municipal Bureau of Culture and Tourism, said that Putian plans to support industrial tourism projects such as beer museums, beer culture corridors and beer gardens, and the opening of the Fuxia-Xiamen high-speed railway will bring more sources and opportunities to Putian tourism, so that the "aroma of beer" pervades all directions.

Up to now, the operating mileage of high-speed railway in Fujian Province has reached 2183,9 kilometers, ranking seventh in the country. The Fuxia-Xiamen high-speed railway and the planned Ningbo-Wenzhou-Fuzhou high-speed railway, the Zhangzhou-Shantou high-speed railway that is carrying out preliminary work, the Shantou to Shanwei high-speed railway that is expected to open within this year, and the Shanwei-Guangzhou high-speed railway to open on September 26 will form a new higher-standard Ningbo-Guangzhou high-speed rail channel, which is an important part of the coastal passage of the "eight vertical and eight horizontal" high-speed railway network, and the status of the road network is very important. Huang Maoxing, vice president of the Fujian Academy of Social Sciences, said that a high-speed railway corridor running through the southeast coast and connecting the Yangtze River Delta with the Guangdong-Hong Kong-Macao Greater Bay Area with a speed of 350 kilometers per hour is of great significance to China's economic development. (End)