Recently, the 8.03m full-face rock excavation machine (TBM) independently developed by China Railway Equipment Group (referred to as China Railway Equipment) has been fully commissioned in the Jilin lapping site and is about to enter the excavation stage. This rock roadheader can be widely used in mountain tunnel excavation, large-scale water diversion projects and national defense engineering construction. The successful development of this equipment rewrites the history that China's rock roadheading machine relies entirely on foreign countries and core technology is subject to people's history. At the same time, it indicates that China's rock tunneling machine technology has ranked among the top in the world.
What is the tunnel boring machine? It is a high-end equipment integrating mechanical, electrical, hydraulic, sensing, information, mechanics, guiding and other technologies. It is known as the "king of engineering machinery" and is the world's most advanced tunnel construction equipment. It has been included in the revitalization equipment by the State Council. The 16 major technical equipments in the manufacturing industry are the landmark products for measuring the level of a country's heavy equipment manufacturing industry.
Due to the complicated manufacturing process of the shield and the high added value of technology, it has been monopolized by a few developed countries such as Germany, France and Japan. The "foreign shield" once occupied more than 95% of the market in China, and the price is high, and the key The technology is blocked. For a long time, due to the lack of domestic shields and key technologies, the arrogance of foreign experts has deeply stung the national pride of the Chinese people. The first generation of Chinese railway equipment workers in the tunnel construction made up their minds to "make the Chinese people's own shields." Since 2000, with the deep construction technology accumulation, the 18-person R&D team has boldly innovated and used the shield construction site as a classroom, and this has begun a new exploration and journey. After successfully entering the National 863 Program in 2002, he invested heavily in the establishment of the first shield industrialization base in Xinxiang, Henan Province in August of that year.
"As a company that grows under the strong support of the National 863 and 973 Programs, we have always regarded innovation and creation as the main means of development, keeping up with the national development strategy, establishing an innovation system, and adhering to the investment in science and technology research and development to create 'production, learning and research.' , use, politics, gold, media 'big innovation pattern.' Li Jianbin, chairman and party secretary of the group company, told the Science and Technology Daily reporter that their annual investment in science and technology accounts for about 6.3% of sales revenue, and constantly absorbs advanced design concepts. Wait, build an international research team.
China Railway Equipment has a wide construction platform, providing first-hand construction materials and data information for product development, providing thick soil and fresh nutrients for product development. At the same time, the after-sales service team of more than 200 people provides the construction party with a comprehensive, all-weather, integrated and rapid response service. More importantly, China Railway Equipment has established the most professional and disciplined tunnel equipment research institute in China. It has nearly 200 technicians engaged in the development and manufacture of shields. These R&D personnel are workers who have grown up from the construction. academician". As a result, a benign closed loop of basic research, on-site construction, R&D, manufacturing and after-sales service has been formed.
As a pioneer in the development and manufacture of tunnel boring machines in China, the tunnel boring machine produced by China Railway Equipment has participated in the construction of subways and tunnels in more than 30 cities. Its product market share and technological strength have long been ranked first in China.
Shield machines manufactured by China Railway Equipment are widely used in all domestic subway projects under construction and exported to many countries. The world's largest section rectangular shield (length 10.12 × width 7.27 meters) independently developed by China Railway Equipment was successfully used in the tunnel tunnel of Zhongzhou Avenue, providing a new solution for urban traffic tunnel excavation. In January 2015, China Railway Equipment successfully developed the largest diameter rock tunneling machine in China, which effectively improved the efficiency and safety performance of tunnel construction in China.
Today, China Railway Equipment has accelerated the pace of transformation and upgrading. The project “Basic Research on Information Technology Intelligent Control and Support Software for Whole Process of TBM Safe and Efficient Tunneling†undertaken by the company was also supported by the National Science and Technology Plan. Li Jianbin said that they are building the world's largest large network of roadheaders and cloud computing centers through the planning project. This platform will effectively solve the intelligent control and remote service problems of roadheaders. Through data analysis and modern Internet technology, equipment can be realized. Remote control, "unattended, intelligent tunneling" will become a reality.
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