China started late in developing full-section boring machines, but after years of development, it has made remarkable achievements. In 1966, the former Shanghai Marine Machinery Factory produced China's first open boring machine with a diameter of 3.4 meters and reached the practical stage. However, due to limitations in technical performance and product quality at that time, research and development work was stalled for a time. Since the early 1990s, with the increase in the number of domestically imported boring machines, China has increased technology introduction and technical cooperation. This period marks that China's full-section boring machine technology has entered a new stage of development.
Employ technology introduction and independent research and development simultaneously
In the early 1990s, domestic infrastructure construction demand grew rapidly, and the application of full-section boring machines gradually became a trend. By introducing advanced foreign technologies and carrying out technical cooperation, many domestic manufacturers have begun to develop and produce full-section boring machines, and have achieved good social and economic benefits. At this stage, China's full-section boring machine technology has been rapidly improved.
Application of boring machines in major engineering projects
With the continuous expansion of the scale of China's infrastructure engineering construction, full-section boring machines have been widely used in many major engineering projects. For example, projects such as the Qinling Railway Tunnel, the Water Diversion Tunnel from Da Da to Qin, the Wanjiazhai Water Diversion Tunnel from Yellow River to Shanxi, the Tianshengqiao II Hydropower Station Water Diversion Tunnel, and the Dahuofang Water Diversion Tunnel all use boring machines for construction. Through the implementation of these projects, China's tunnel boring machine construction technology has made great progress.
Refresh world records and economic benefits
In the process of practical application, some projects have set new world records for full-section boring machines and created significant economic benefits. For example, some tunnel boring machines achieved unprecedented tunneling speeds and tunneling lengths during the construction process, providing valuable experience for the implementation of subsequent projects. These successful cases have laid a solid foundation for the promotion and use of full-section boring machines in China, forming a virtuous cycle.
The development history of China's full-section boring machines has evolved from a late start to a gradual maturity, and has experienced the process of technology introduction, independent research and development and large-scale application. Through successful application in many major engineering projects, full-section boring machine technology has developed rapidly in China and achieved good economic and social benefits. This series of achievements not only improved China's technical level in the field of full-section boring machines, but also provided strong support for the implementation of subsequent projects, forming a virtuous cycle for the promotion and application of full-section boring machines in China.