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China’s Innovation Brings the World A Tunnel Boring Machine with a Capacity of 5,000 Tons and the Largest Diameter Ever Seen
Innovation in Engineering. China has taken a major step in its technological advancement by completing the production of its largest Tunnel Boring Machine (TBM). Named Jianghai, which means “river and ocean” in Chinese, the machine features a diameter of 16.64 meters and an impressive weight of approximately 5,000 tons. Its total length is 145 meters, making it the largest TBM designed and manufactured in China.
The construction of Jianghai took place in the city of Changsha, Hunan province, through a collaboration between China Railway Construction Heavy Industry (CRCHI) and the China Railway 14th Bureau Group (CR14G). This milestone reflects China’s potential to lead innovation in drilling technology and the country’s growing industrial capacity.
A Leap for Infrastructure Engineering
The Jianghai machine was designed to be used in a large-scale project: the construction of a tunnel under the Yangtze River in Jiangsu province. The tunnel, part of a 39-kilometer highway, will have 11.2 kilometers of underground length and reach depths of up to 75 meters. Its completion is expected in 2028, and it is considered one of the most complex works in the region.
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According to You Shaoqiang, chief engineer of the project at CR14G, the challenges for drilling include the presence of groundwater, soft soil, and sludge, conditions that render traditional manual methods impossible. However, with the technological advancement of the new TBM, drilling is expected to be completed in approximately two and a half years, with a progress rate of 12 to 16 meters daily.
Cutting-Edge Technology and Precision of China’s Technology
The TBM has a cutting head with a diameter of 16.64 meters, equivalent to a five or six-story building. With this magnitude, the excavation precision must be maintained within 1 centimeter to ensure the safety of the Yangtze River’s dams, a challenge that demonstrates the high level of engineering involved.
The president of CRCHI, Zhao Hui, highlighted that this machine represents a milestone for the industry, reflecting the progress and tireless work of Chinese engineers. In 2022, the same collaboration between CRCHI and CR14G produced a 16.07-meter TBM for a project in Beijing, but the current project surpasses previous specifications in scale and capacity.
Recent Technological Innovations
In May, China also announced the development of a blasting and drilling machine (BBM), the first in the world with this technology, increasing efficiency by 30% compared to traditional methods. This technology was developed by the China Railway Science & Industry Group Corporation in partnership with Tsinghua University.
The BBM stands out for its ability to operate in extreme conditions and for using simultaneous drilling and blasting methods. Researchers at Tsinghua University indicate that this machine can be employed in a wide range of projects, from water conservation to infrastructure construction and mining.
Impact and Future of the Technology
According to the deputy head of the transportation project construction department of Jiangsu, Wang Jun, the new TBM is an essential step for the province’s development. He stated that the ability to handle complex challenges in geology and underground pressures reinforces China’s position as a leader in large-scale engineering solutions.
Future applications of this technology promise significant advances in global projects, positioning China as a pioneer in the field. The combination of efficiency, safety, and smart technology will make these systems increasingly sought after in infrastructure projects worldwide.
Esses governos que se diz de direita, destrói o que os estados construiram, vendendo para os chegados deles, tudo esquema, é só ver o leilão das escolas em São Paulo, quem venceu fazia parte do governo do “****”. Falam mal dos chineses e acabam se rendendo a eles, ex. está aí o governo do “MERDEI” da Argentina.
Se for como os carros chineses, deve ser uma enorme ****
Aceita que a China é muito desenvolvida e gigante vários aspectos!
A enorme ××××× é a sua opinião de xenofobico
Maravilha show de **** parabéns aos desenvolvedores excelente inovação. Obs: à Alemanha também tem uma dessas máquinas muito usado em obras de túnel de metrô e muito mais no mundo todo!!!