High quality and cheap lower line of large diameter shield machine made in China's first railway    

In November 14th, the large diameter shield machine of domestic first successful railway line in railway construction heavy industry workshop, this equipment is composed of Chinese railway construction group and China Railway sixteen bureau group cooperation research.

Let us return to the exciting moment, in the morning, the railway construction heavy production workshop, with the red veil falls slowly, the large diameter shield machine is the first domestic railway Zhenrong: 8.8 meters in diameter, length of 100 meters, weighs about 1200 tons, from head to tail shield, like long, extraordinary. Each price is about 20000000 yuan cheaper than the import, and it is a product with independent intellectual property rights.

Large diameter shield machine for domestic first railway

This new downline large diameter shield machine is suitable for a variety of complex strata and will be responsible for the excavation of the Guangzhou Zhuhai intercity rail transit line. The geological condition is complex, and the interlaced combination of different geotechnical types is known as "Geological Museum" in the industry. There are many safety risks, which put forward high requirements for the comprehensive performance of shield machine.

For a long time, the railway construction heavy focus on the domestic market, relying on the construction technology and construction experience of China railway construction in railway construction of long-term accumulation, mastered the core technology with a number of world leading level and independent intellectual property rights.

The railway construction combined with the engineering geological conditions of the Pearl River Delta city rail joint, China Railway sixteen bureau to carry out the key technology research and technology research, through long distance geological reinforcement technology, automatic mud packing technology, a segment lifting technology, long distance and high abrasion cutter making key design technology, lasted for 7 months. To create a new record of large diameter shield machine has independently developed the first domestic railway. The equipment has high cost performance, good reliability and obvious advantages.

According to the introduction, there are three railway large diameter shield machines being built now. In addition to the latest "offline boss", the "second" has begun to take shape, and is expected to be offline soon.

The appearance of the first domestic railway large diameter shield machine fills the blank of our own brand of the large-diameter shield machine, effectively improves the level of China's equipment manufacturing industry and the core competitiveness of the major equipment, and will speed up the pace of urbanization and the construction of the large railway network. A new breakthrough has been made in the research and application of the key technology of domestic large diameter tunneling equipment.