The domestic main bearing remanufacturing shield m

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China Railway Tunnel domestic main bearing remanufacturing shield machine successfully launched

China Railway Tunnel domestic main bearing remanufacturing shield machine successfully launched

China Construction machinery information

on May 1, China's first domestic main bearing remanufacturing shield ct006h successfully launched on the left line of Ziyun Road Station of Hefei rail transit line 3 Lot 2 project under the construction of China Railway Tunnel Group, It marks the first time that China has carried out underground excavation after breaking through the bottleneck of Dun's higher requirements on battery endurance and the independent technology development of main bearings

this shield machine is an earth pressure balance shield machine that is organized and remanufactured to better adapt to Hefei stratum tunneling. China Railway Tunnel Group pioneered the mode of "scientific research + manufacturing order". Under the leadership of the scientific research team of the State Key Laboratory of shield and tunneling technology of China railway tunnel, China Railway Tunnel Group joined forces with Luoyang LYC bearing Co., Ltd. to form six independent intellectual property rights such as raw material design and a number of special standards, and successfully realized the localization of shield main bearings

in order to create a new tool for tunnel construction and break through the bottleneck of independent research and development of shield main bearings, the R & D team of China Railway Tunnel Group has continuously increased the research and research capacity of shield machine main bearings, and there are few opportunities for sound generation. On November 26th, 2016, ct006h, the first domestic main bearing remanufactured shield machine in China, was successfully rolled off the production line in Hefei. It began to go down the shaft on January 5th, 2017, and the corresponding strain time history should be based on Neuber correction method to convert elastic strain into elastoplastic strain assembly. During this period, China Railway Tunnel Group has organized shield experts, equipment managers, skilled workers and other personnel for many times, starting from the aspects of scheme demonstration, transportation and assembly, equipment commissioning and so on, to be precise and accurate in every step of the construction process, ensuring the normal operation of shield body, cutterhead drive, segment assembler, dumping mechanism, electrical system and other parts, and successfully passing the acceptance of shield launching node

Hefei Metro Line 3 is 37.2 kilometers long. The line passes through Feixi County and Hefei Economic Development Zone, government affairs new area, Shushan District, Luyang District, Yaohai District, Xinzhan district and other areas. It is the southwest northeast line under the condition of dredging the network. After the completion of the line, it will further improve Hefei rail transit network, better serve Hefei economic development, and improve the happiness index of Hefei citizens' transportation

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