English：

To reach the synchronous virtual effect with physical entity, the virtual mapping of theconstruction environment around high speed railway box girder transportation and erection and equipmentwas achieved by 3D panoramic digital technology, then the 3D panoramic digital models were driven intime by technology of the Beidou navigation positioning system, GIS map, equipment automaticinformation collection and intelligent inference. Through the digital twin global perspective, managementpersonnel at all levels could analyse, predict and control to the work progress more conveniently andefficiently. Based on Jingmen⁃Jingzhou High⁃speed Railway project, the practical exploration wasconducted, a typical digital twin application in large⁃scale complex scenes of high⁃speed rail box girdertransportation and erection was formed, and the deep integration of traditional industries and digital twinswas effectively promoted.