The mechanical army behind Zhengwan High-speed Railway - Tiejian Heavy Industry Super Underground Engineering Equipment

On August 8, CCTV's financial channel "Economic Half-hour" broadcasted the feature film "Mechanical Legion behind Zheng Wan High-speed Rail". The mechanical corps in the program is the super-underground engineering equipment carefully built by Tiejian Heavy Industry. It will help the Zhengwan high-speed railway tunnel construction with high efficiency and safety, and promote the intelligent construction of Chinese tunnels with super and intelligent.

Economic half hour show screenshot

Zhengwan High-speed Railway has a total length of 818 kilometers. It passes through Henan, Hubei, and Chongqing along the way. There are rare geology such as rock piles, karst, fault fracture zone, bedding layer and bedding layer bias. The geological conditions are complex, the proportion of bridges and tunnels is as high as 98%, and construction safety is safe. The risk is high. It is called one of the most difficult and risky railways in the world's high-speed rail field. It is difficult to cross the mountain and river gully by manpower alone to meet the construction and construction needs.

Zhengwan high-speed rail construction site (economic half-hour program screenshot )

Under the support of Wang Tongjian, deputy general manager of China National Railway Group Co., Ltd., member of the party group, Wang Zhijian, chairman and general manager of Wujiu Railway Passenger Dedicated Line Hubei Co., Ltd., the north section of Zhengwan High-speed Railway has become a full-geological and full-section of China's high-speed railway tunnel. A pioneer in the implementation of mechanized construction and information management. In May 2017, under the leadership of Wujiu Railway Passenger Dedicated Line Co., Ltd., the Institute of Iron and Steel, Southwest Jiaotong University, China Railway Second Hospital, Tiejian Heavy Industry, China Railway First Bureau, China Railway Fifth Bureau, China Railway Tunnel Bureau, China Railway 11th Bureau, China Railway The 12th Bureau and the China Railway 18th Bureau participated in the joint research, design, manufacturing and construction, and approved by the China National Railway Group Co., Ltd., “Study on Key Technologies of Safety and Rapid Standardization Construction of Zhengwan High-speed Railway Tunnels”, for large sections The key technologies of tunnel mechanized construction series equipment, tunnel support design method, large-section tunnel construction method and process, tunnel construction quality information management and control, etc. have been systematically and in-depth research, and the localization and informationization of large-scale equipment manufacturing have been realized. The supporting structure has been optimized for mechanized construction. At present, 18 geologic, full-section, mechanized, informationized, safe, high-quality and rapid construction have been realized in 18 tunnels (47 work areas), in order to realize intelligent tunnels. The construction laid a solid foundation.

Wang Tongjun (second from left), deputy general manager and member of the party group of China National Railway Group Co., Ltd., Wang Zhijian (third from left), chairman and general manager of Wujiu Railway Passenger Dedicated Line Hubei Co., Ltd., and Liu Feixiang, chairman of the party committee and chairman of Tiejian Heavy Industry (fourth from left) The leaders attached great importance to the intelligent construction technology of the tunnel and visited the north section of Zhengwan High-speed Railway for research and guidance.

In October 2018, China National Railway Group Co., Ltd. approved the scientific research project of "Intelligent Construction Technology Research of High-speed Railway Mountain Tunnel". Under the leadership of Wujiu Railway Passenger Dedicated Line Co., Ltd., the intelligent construction of China Railway Mountain Tunnel opened. Among them, Tiejian Heavy Industry is responsible for the research and development of intelligent equipment and intelligent collaborative management platform. The participating units are determined to make tunnel construction safe, reliable, and cost-effective through the research of intelligent construction technology. On the basis of tunnel mechanized construction, the number of construction workers on the working surface can be further reduced, and the safety of tunnel construction can be improved. Intelligent construction equipment is accurate. In place, the tunnel construction process data is transparent, the tunnel construction quality is intelligently supervised, the tunnel construction quality is guaranteed; the tunnel design theory is optimized, the construction machinery is coordinated, the construction progress is accelerated, the construction efficiency is improved, and the development of tunnel construction technology in China is once again led and promoted. Fully realize the intelligent construction of railway tunnels.

The mechanical army in the construction of Zhengwan High-speed Railway - Tiejian Heavy Industry Super Underground Engineering Equipment

In Zhengwan High-speed Railway, Tiejian Heavy Industry provided intelligent drilling and blasting equipment including full-computer three-arm rock drilling rig, intelligent concrete wet spray trolley, intelligent arch trolley, and digital lining trolley. The large section of the surrounding rock and the full-section excavation, the face is less humanized and unmanned, greatly improving the safety and comfort of the operation, improving the construction quality and various anti-risk capabilities. In the program, Jiang Yinzhou, a mechanical and electrical minister of the first section of the Wuhan Iron and Steel Co., Ltd., said that the previous excavation was a 28-drill, and the single-work industry required 25 units and 25 operators. Now it uses three irons. After drilling the rig, there will be 3 people in a single machine and 6 people in a double machine operation, which will save nearly 20 people. The construction team has been reduced from nearly 200 former workers to the current maximum of 55, less than one-third of the previous one.

Tiejian Heavy Industry Three-arm Drilling Rig

Under the leadership of China Railway Construction, Tiejian Heavy Industry adheres to the product development concept of “Working Law Promotes Equipment Development, Equipment Drives Engineering Revolution” and is committed to providing customers with tunnel construction system solutions. At present, it has built independent intellectual property rights and The tunnel construction mechanization technology and complete sets of equipment in line with China's national conditions have formed a number of products and scientific and technological achievements to fill international or domestic gaps. They are widely used in major domestic railway projects, highway projects, mining projects, water conservancy projects and national defense projects. The participating units and industry insiders have received wide acclaim.

Behind the mechanical army required for the construction of Zhengwan High-speed Railway is a strong R&D team of Tiejian Heavy Industry

At present, Tiejian Heavy Industry takes Zhengwan High-speed Railway as an opportunity to establish a tunnel intelligent equipment technical route from 1.0 to 5.0 technical version, and is building a full-process tunnel intelligent equipment system. Liu Feixiang, secretary of the Party Committee and Chairman of the Iron Construction Heavy Industry Committee, said in an interview on the show that in the past, there were hundreds of people in a tunnel, and now it has been reduced by 50%. This is a big effect. In the future, the ideal application scenario for tunnel construction is that the tunnel is unmanned, without lights, and without oxygen, and the tunnel construction is unmanned. This is the goal we are pursuing. (This article comes from Tiejian Heavy Industry)