As one of the important technologies for intelligent construction of rail transit,digital twin has gradually become a research hotspot in the industry.According to the practice of applying intelligent construction of rail transit,this paper reviewed the phased achievements of digital twin from four dimensions:planning and design,machining and fabrication,construction management,and operation and maintenance.Aiming at the gaps in existing research,this paper suggested future research directions and focal points for digital twin technology.The findings reveal that the digital twin technology can improve project quality,reduce costs and increase efficiency,and it offers real-time supports for making decisions and enables real-time data sharing in the entire lifecycle.It has a broad application prospect in the intelligent construction of rail transit,and will play a positive role in promoting the development of the industry.
digital twinrail transitintelligenceintelligent constructiondigital collaboration
NETL
NSTL
万方数据
