TBM excavation of grassland Jixiang of the hottest

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Railway construction heavy industry "grassland auspicious" TBM excavation starts

TBM excavation of "grassland auspicious" of railway construction heavy industry starts

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the launching ceremony site of the yinchuo Jiliao project

on November 25, the TBM tunneling of "grassland auspicious number" independently developed by China railway construction heavy industry Co., Ltd. will help the largest water conservancy project in Inner Mongolia Autonomous Region - yinchuo Jiliao project, which is participated in by the China Railway 18th bureau group

Cctv13 broadcast

the water diversion project from Chuo to Liaoning Province is composed of wendigen water control project and water conveyance project. It is the largest water conservancy project in Inner Mongolia autonomous region so far. Among them, the water conveyance tunnel is 183 kilometers long, which is constructed by drilling and blasting +tbm, and a total of 5 TBM are invested, which is the first one in the whole line of the yinchuo Jiliao project

equipment downline ceremony

the excavation diameter of the equipment is 4.75m, the length of the whole machine is about 295m, the weight of the whole machine is about 1000t, and the total installed power is about 3300kW. Railway construction heavy industry has long single head tunneling distance for yinchuo Jiliao project, high requirements for equipment reliability, the risk of water inrush and mud inrush, passing through unstable strata of surrounding rock such as fault fracture zone, requiring TBM to have rapid support ability and other engineering difficulties, and organizing customers to hold many design liaison meetings, There are no major improvement and optimization schemes for the production of starch based plastics and biodegradable plastics. During the design and manufacture of TBM, technical difficulties such as "integration of small-diameter TBM system", "rapid passing capacity of unfavorable geology such as water inrush in tunnel, fault and fracture zone", "arrangement of personnel logistics channel", "pulley structure is not easy to pass through arch", "small section ultra long distance ventilation" and "arrangement of small-diameter cutterhead tools" have been overcome in succession, and the experimental curves have been recorded; The application of sensor skills makes the measurement get the response question by digital means

It is understood that the TBM and continuous belt conveyor used by China Railway 18th Bureau were designed and manufactured by China railway construction heavy industry. The assembly of TBM began on October 4, 2019, and the assembly of continuous belt conveyor began on October 27, 2019. On November 17, 2019, the TBM and continuous belt conveyor were powered on and commissioned at the same time. The commissioning was completed on November 22. The installation and commissioning of roadheader and belt conveyor were completed within two months, ensuring the smooth commencement of yinchuo Jiliao project

on site of tunnel ballast production line

"grassland auspicious" TBM starts to drive, marking another step forward for China railway construction heavy industry in the high-end equipment manufacturing industry. CRCC heavy industry will also take this project as an opportunity to continue to strengthen its independent R & D and manufacturing capabilities, keep in mind the original intention and mission of "building a world-class enterprise with global competitiveness in the high-end equipment manufacturing industry", and continue to move forward

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