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  An Integrated Information Framework for Precast Tunnel Concrete Lining Segments Life-Cycle Management

  The quality of precast concrete lining segments is associated with the safe operation of the tunnel closely. Researchers and engineers require full life-cycle information of precast concrete lining segments so as to analyze tunnel defects, maintain tunnel segments and prolong the life of tunnel. This paper proposed an integrated information framework from the perspective of quantity traceability and visual interactivity for supervising and controlling the whole process of segment design, manufacturing, construction and maintenance. Radio Frequency Identification (RFID) and Building Information Modeling (BIM) technology are applied in this framework, with a series of manufacturing information processing methods to optimize manufacturing and constructing process, adjust maintenance strategies and prevent segments defects occurring. Having been used in a Shanghai cross-river tunnel project, the framework is demonstrated to be stable and useful.

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