The largest diameter shield machine will come from railway construction

Recently, the railway construction heavy industry to China Railway sixteen Bureau signed a strategic cooperation agreement to jointly develop large diameter slurry shield machine 12.81m.

It is reported that the new Xinzheng airport line to the Zhengzhounan Railway Station intercity railway project as a key project in Henan Province, a total length of 7.397km, the continuous shield excavation section of 3.8km, the middle through silt and silty clay calcareous strata, and beneath the South North Water Diversion Canal, many difficult formation differences, ground building complex, large diameter and super shallow buried depth, one-time driving distance is long, the comprehensive performance of all the requirements of shield tunneling equipment must have high.

The largest diameter shield machine will come from railway construction

Super large diameter slurry balance shield machine is a special construction equipment for light, mechanical and hydraulic integration underground tunnel engineering, which integrates excavation, mucking and lining support. It has remarkable advantages in the construction of river crossing tunnel project. Moreover, super large diameter slurry shield has many advantages, such as high technology content, complex manufacturing process, high added value of products, high concentration of industrial development, and so on. It has become the core high-end equipment to vigorously promote the development of urban rail transit equipment industry.

After the successful development of the equipment, it will become the largest self owned intellectual property rights of the largest diameter slurry balance shield machine, applied to the new Xinzheng airport to Zhengzhounan Railway Station intercity railway project.

Before the core technology of this equipment has been developed countries such as Germany and Japan monopoly, domestic procurement all rely on imports, heteronomy.

The signing of the joint development, railway construction and railway sixteen Bureau will play their respective advantages, composed of R & D group, joint development and application of large diameter boring scientific research equipment ". The sixteen Bureau of China Railway Tunnel Construction Based on the rich experience, to shield design, railway construction heavy industry mature production technology as the foundation, in the large diameter excavation equipment design technology, digital model of large diameter excavation equipment design and manufacturing technology, high precision excavation chamber gas pressure independent balance control technology, high power water scour circulation system control technology multi source, high power synchronous drive control technology, large size parts quality control and detection technology and other core technologies to achieve a breakthrough in one fell swoop, to fill the gaps, and strive to reach the international advanced level.

The completion of the shield machine will become the largest shield machine in the history of the domestic shield machine.