China's high-speed rail leading advantage continues to expand
2025-07-11
This year marks the 200th anniversary of the birth of the world railway. The 12th World High Speed Rail Conference was held in Beijing from July 8th to 11th, with the theme of "High Speed Rail: Innovative Development for a Better Life". It was learned from the meeting that as a "national business card" and "international benchmark", China's high-speed rail started from scratch and independently developed a large number of technological innovation achievements represented by the Fuxing Express. The overall level of high-speed rail technology has entered the world's advanced ranks, and some fields have reached the world's leading position. China's high-speed rail world leading advantage continues to expand. Data shows that as of the end of 2024, China's high-speed rail operating mileage is 48000 kilometers, exceeding 70% of the world's total high-speed rail mileage. China's high-speed trains have sent a total of 22.9 billion passengers. The development of China's high-speed railway has greatly facilitated people's travel, strongly promoted regional connectivity and coordinated economic and social development, driven urban construction and industrial development along the line, become an important link for the joint construction of the "the Belt and Road" national infrastructure connectivity and civilized exchanges and mutual learning, and is increasingly becoming an important public product for the benefit of all mankind. With advanced technology, pressing the button and pushing the handle to start the train, the scenery in the giant screen quickly moves backwards, and the driving experience of the Fuxing high-speed train with a speed of 350 kilometers per hour is full. Zhao Xianghong, Deputy Director of the Information Institute of China Academy of Railway Sciences, introduced that high-speed rail autonomous driving technology integrates cutting-edge technologies such as big data, artificial intelligence, and 5G communication. It can not only improve the safety and punctuality of train operation, but also optimize energy management, reduce operating costs, and bring passengers a safer, more comfortable, and efficient travel experience. Do you still think it's not fast enough? The world's fastest high-speed train with an operating speed of 400 kilometers per hour will definitely broaden your horizons. At the National Railway Testing Center, the reporter saw the CR450BF high-speed train undergoing train testing. The appearance of the front of the car that everyone is seeing now is themed 'Light of Technology', fully showcasing Chinese culture, Chinese wisdom, and Chinese spirit. ”Wang Lei, the chief designer of CRRC Changke Co., Ltd., introduced that the overall design of the CR450BF high-speed train follows the minimalist design concept and integrates Eastern aesthetic elements, striving to achieve optimal performance with the simplest structure. The CR450BF high-speed train has the intergenerational characteristics of 'six changes', namely higher speed, safer, more energy-efficient, more comfortable, more intelligent, and greener, with significant improvements in drag reduction, consumption reduction, and noise reduction. ”In terms of high-speed trains, China has established a complete technical and standard system for the research and development, manufacturing, testing, and maintenance of high-speed trains, with a commercial operating speed of 350 kilometers per hour. As of the end of 2024, the number of high-speed trains exceeds 4800 standard units. Li Yongheng, Director of the Equipment Technology Department of the Ministry of Science and Information Technology of China Railway, said that achieving comprehensive self-reliance, possessing independent intellectual property rights, forming an independent and controllable innovation chain industry chain, and fully mastering the core technology of trains in one's own hands are key steps taken by the Fuxing Express. At the same time, the continuous operation speed is 350 kilometers per hour, and the safety operation capability is globally leading. The technical performance and comfort experience set a benchmark for the commercial operation of high-speed railways in the world. In addition, a technology and standard system for high-speed trains in China has been established, laying a solid foundation for the coordinated development of the industrial chain, the systematic development of products, and future technological upgrades and iterations. Nowadays, the Fuxing Express has successfully transformed China's high-speed rail from a technology follower to a trendsetter. On the basis of the independent innovation achievements of the Fuxing high-speed train, China Railway Group has implemented the CR450 technology innovation project, with the overall goal of upgrading the high-speed rail mobile equipment technology industry through the research and development of a new generation of high-speed EMUs, achieving higher speed commercial operation on eligible lines, consolidating and expanding China's high-speed rail "leading" advantage, and better meeting the people's demand for better travel. At present, significant phased achievements have been made in the technological research and development of CR450 high-speed trains. The test speed can reach over 450 kilometers per hour, and the maximum operating speed can reach 400 kilometers per hour, which can further improve the transportation efficiency of the road network and the travel experience of passengers. Under high-speed operating conditions, the structural safety is higher and the braking distance is shorter. The intelligent brain of the train constructs an active safety guarantee system. ”Introduction by Li Yongheng. At present, the CR450 high-speed train prototype is undergoing type tests to create conditions for early commercial operation. ”Introduction by the relevant person in charge of China Academy of Railway Sciences Group Co., Ltd. At the 17th China International Modern Railway Technology and Equipment Exhibition, a small black box attracted the audience to stop and watch at the China Railway booth. This box is an internationally leading HSP advanced geological prediction system independently developed by China. The shield machine equipped with this box can achieve remote control, making shield machine construction more intelligent, efficient, and safe. ”Gao Hongbing, General Manager and Deputy Secretary of the Party Committee of China Railway Academy of Sciences, said. High speed rail involves a wide range of industries and has high technical requirements. In addition to advanced equipment manufacturing technology, it also requires strong construction capabilities. The geological conditions and climate environment faced by China's construction of high-speed railways are very complex, and there is no mature experience in the world to draw on. It relies entirely on independent innovation to form a unique engineering construction technology advantage. ”Xue Hui, Director of the Engineering Management Department of the Ministry of Construction of China Railway, introduced. Taking tunnel construction as an example, high-speed rail construction often requires crossing mountains and valleys, and traditional techniques such as blasting and rock drilling cannot meet the requirements of high strength, high precision, and high timeliness. Therefore, innovative use of new equipment and technologies such as tunnel boring machines (TBMs) is needed. The progress of TBM tunnel construction is fast, but the TBM body occupies a large amount of tunnel space and is strongly affected by sources such as vibration and electromagnetic interference, which limits the use of traditional forecasting techniques. China Railway Research Institute has proposed the HSP217T airborne prediction system based on TBM rock breaking seismic source. Innovations have been made in the integration of equipment systems, automation of detection work, real-time data processing, intelligent interpretation of result maps, and digitalization of forecast information management. TBM has achieved real-time geological perception within a 100 meter range, with the entire forecasting process taking less than 10 minutes. The accuracy of fault fracture zone forecasting has reached 90%. Currently, it has been applied in more than 350 TBM (or shield) engineering projects at home and abroad. Through the unremitting efforts of the construction units, China has overcome a series of construction difficulties and built a large number of high-speed railways that are suitable for special climates such as high cold, high temperature, drought, sandstorms, as well as complex geological conditions such as soft soil, loess, seasonal frozen soil, karst, etc. It has the ability to construct high-speed railways in various climatic environments and complex geological conditions. Xue Hui introduced that China currently has the world's most comprehensive bridge design and construction technology and modern construction equipment. It has overcome the technical difficulties in the construction of large-diameter shield tunnels and squeezed surrounding rock tunnels in urban areas, developed key track equipment such as high-speed railway rails, large number turnouts, fastening systems, and rail expansion adjusters, mastered the design and construction technology of large railway passenger stations, and established a complete railway building information model (BIM) standard system. According to the 2016 National Medium - and Long Term Railway Network Plan, the "Eight Verticals and Eight Horizontals" high-speed railway plan is progressing smoothly. As of the end of June this year, about 81.5% of the "Eight Vertical and Eight Horizontal" main channels have been completed and put into operation; The scale of construction in progress is about 14%. Among them, the Beijing Shanghai corridor from Beijing to Shanghai, the Beijing Harbin and Beijing Hong Kong Macau corridors from Beijing to Harbin, the Qingyin corridor from Qingdao to Yinchuan, the land bridge corridor from Lianyungang to Urumqi, the Shanghai Kunming corridor from Shanghai to Kunming, and the Guangzhou Kunming corridor from Guangzhou to Kunming have been connected. Preliminary work is being carried out on sections such as the Fengtai Xiong'an section of the Beijing Hong Kong Taiwan high-speed railway corridor and the Yichang Changde section of the Hunan Nanjing high-speed railway corridor. The "Brain" is more developed at the China Railway Signal&Communication booth, with four major sections: globally leading rail transit operation control system solutions, digital transformation empowering high-quality development of railway safety control industry, artificial intelligence technology promoting comprehensive development of railway intelligent operations, and low altitude intelligent control technology promoting green development of railway safety. As a massive and complex system engineering, high-speed rail is composed of lines, bridges, and tunnels that form its' skeletal meridians', high-speed trains that give it a 'flesh and blood pulse', and train control systems that are the core 'brain nerves', ensuring the safe and efficient operation of trains and providing high-quality travel services for passengers. ”Chen Zhiqiang, President of the Security Control Technology Research Institute of the Communication Design Institute, introduced. At present, China has built tens of thousands of kilometers of high-speed rail lines and thousands of high-speed trains, which demonstrate the extraordinary achievements of China's high-speed rail. In unseen places, China's high-speed rail control system has also achieved leapfrog development. In terms of independent innovation, we have successfully developed a train control system with completely independent intellectual property rights, achieving 100% autonomy in system platform, core software, and complete equipment; In terms of technological breakthroughs, we pioneered the commercial operation of autonomous driving for high-speed trains with a speed of 350 kilometers per hour, utilizing innovative technologies such as Beidou positioning to achieve train movement block tracking control, and developed a dual-mode communication train control system that supports a speed of 400 kilometers per hour. China's high-speed rail control technology has also emerged on the global stage. In 2022, the Serbian section of the Hungary Serbia Railway will be opened, achieving alignment with EU railway standards and injecting Chinese blood into the European railway network; In 2023, the Jakarta Bandung high-speed railway in Indonesia will be put into operation, and China's CTCS-3 level train control system will go global, demonstrating the international competitiveness of Chinese technology. In the face of the digital wave of railways, we will focus on empowering with digital intelligence, creating a professional large-scale model of signal systems, and improving transportation efficiency and safety levels; Build a digital equipment architecture to achieve intelligent equipment operation and maintenance; Build an intelligent operation control and health management platform to promote the integration of operation control, operation and maintenance. ”Chen Zhiqiang said. (New Society)
Edit:XunTing Responsible editor:LiuKaiEn
Source:Science and Technology Daily
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