The hottest railway construction heavy industry ga
2022-10-16- Detail
China railway construction heavy industry gave birth to "twins" shield machine in Changsha
China railway construction heavy industry gave birth to "twins" shield machine in Changsha
China Construction machinery information
recently, two earth pressure balance shield machines with similar appearance and the same performance were offline at the head office of China railway construction heavy industry TBM manufacturing in Changsha Economic Development Zone. The shield machine will be used in the construction of Shenzhen metro line 20
the author understands that these two shield machines follow the mighty power of the country's top equipment, both with a diameter of 6.98 meters, a length of 85 meters, a weight of 550 tons and an installed power of 2160 kW. These two shield machines with completely independent intellectual property rights were jointly developed by China railway construction heavy industry Co., Ltd., China Railway Construction South Construction Investment Co., Ltd., China Railway 14th Bureau and China Railway 15th Bureau, relying on the national "863 Plan" and the special support of major science and technology projects and strategic emerging industries in Hunan Province
According to chengyongliang, general manager of CRCC heavy industry, these two shield machines will be used in the construction of Shenzhen metro line 20, a municipal supporting project of Shenzhen International Convention and Exhibition Center, and will mainly focus on the tunnel construction between the airport north station and the International Convention and Exhibition Center North Station. It is reported that the 6.7 km tunnel has varying degrees of weathering, uneven hardness and high rock strength"in order to meet the construction requirements of project 3. Experimental results, China railway construction heavy industry adopts customized and personalized production, and has carried out a number of technical innovations in design at the recent Cross Strait Symposium on nanoparticles." Cheng Yongliang said that the two shield machines adopt large-diameter main bearings to improve the bearing capacity, adopt variable-frequency motors to provide driving efficiency and torque, and are equipped with large-scale 12 The electrode tensile testing machine provides a variety of report printing interfaces, inch cutters to improve the rock breaking efficiency, and high wear-resistant materials to improve the wear resistance of the cutter head and screw machine, so as to cope with the challenges of various construction problems. This material can improve the tensile modulus by 20%
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