Innovation-Driven! China Railway 14th Bureau Group Leads the Compilation of the Technical Guide for Intelligent Manufacturing of Shield Tunnel Segments

2024-09-14 3075 0人评论

  Recently, the preparation outline of the China Railway Construction enterprise technical standard "Guidelines for Intelligent Manufacturing Technology of Shield Tunnel Segments," edited under the auspices of China Railway 14th Bureau Group, successfully passed review, laying a solid foundation for promoting the transformation of shield segment manufacturing toward intelligent and highly efficient development.

  Experts from the University of Jinan, the China Academy of Transportation Sciences, the China Academy of Railway Sciences, the Beijing-Binhai Railway Company and other units, as well as relevant responsible persons from the Science and Technology Innovation and Digitalization Department of China Railway Construction, attended the review meeting held at the Fangqiao Company of China Railway 14th Bureau Group, affirmed the compilation work and put forward suggestions for it.

  The guideline focuses on the application of standardization, informatization, digitalization and intelligence throughout the entire shield segment precasting process, striving to guide premium shield segment precasting, standardize production processes, raise manufacturing levels and promote intelligent inspection methods, so as to foster the orderly and healthy development of intelligent manufacturing technology in the reinforced concrete segment industry for shield tunnels, while effectively improving construction efficiency, enhancing project quality and reducing production costs, and also laying a solid foundation for subsequently editing two CECS association standards.‍

  In recent years, the state has issued a series of policy documents setting new requirements for intelligent manufacturing development plans and the establishment of standards systems, providing strong policy support and guarantees for intelligent segment manufacturing. As a national-level "High-Tech Enterprise" and a Beijing "Specialized, Refined, Distinctive and Innovative" enterprise, the Fangqiao Company of China Railway 14th Bureau Group is committed to opening up new tracks, cultivating new drivers of growth, activating the "source of innovation" in the field of segment manufacturing, and blazing a distinctive path of high-quality development.

  Aiming at the direction of digitalization and intelligence, Fangqiao Company empowers traditional industries with technologies such as artificial intelligence, big data, BIM and digital twins, focuses on the design and development of intelligent precast concrete production lines, construction industrial robots, smart factories and BIM collaborative digital systems, and strives to build a smart system for prefabricated building production, supporting the healthy development of the shield segment industry through intelligent manufacturing.

  From the first-generation fixed pedestal production line that initially relied on manual operation, to the fourth-generation intelligently manufactured production line with linked management, and then to the leapfrog development of the fifth-generation green intelligent segment production line based on BIM, each generational upgrade of the production line has led segment production to advance by leaps and bounds toward greater intelligence and efficiency.
  "Research on Key Technologies for Intelligent Production of Segments for Super-Large-Diameter Shield Tunnels" was evaluated by the China Highway and Transportation Society as reaching the international advanced level; "Research and Practice on Green and Smart Production of Shield Tunnel Segments" won the Gold Award of the 2023 Global Zero Carbon City Innovation Model; and "Data-Empowered Quality Control Technology and Engineering Application for Tunnel Shield Segments" won the second prize of the Quality Technology Award of the China Association for Quality. One scientific and technological achievement after another has been transformed into real productive forces, providing inexhaustible momentum for accelerating the advancement of new-type building industrialization.
  Since the launch of the themed labor competition "Work Hard for 120 Days to Sprint toward the Annual Target," and with the support of the fifth-generation green intelligent segment production line, production bases in Tianjin, Jinan, Wuhan, Suzhou and other places have been going all out to increase capacity and ensure production. The Tianjin segment precasting base recently saw segment production exceed 4,000 rings, meeting at the same time the demand for simultaneous excavation by four shield machines on the Beijing-Binhai Railway and the Tianjin-Weifang High-Speed Railway; the segment production of Yellow River Construction Technology Co., Ltd. exceeded 1,000 rings, providing solid guarantees for shield excavation of the Huanggang Road Yellow River Crossing Tunnel.
  In the future, with the diversification of market demand, the application of environmentally friendly materials and green processes, and advances in digitalization, cloud computing and AI technology, intelligent manufacturing of shield segments will further develop toward diversification, greening and smartness, becoming a key driving force for high-quality construction projects.‍

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