Abstract: In view of the lack of systematic summary of the concept, framework, and key technologies in the prefabrication and assembly of tunnels, targeted elaborations and summaries are made in this paper. First, the prefabrication and assembly of tunnels excavated by means of drillingandblasting is expounded. Second, regarding the overall technological framework of the prefabrication and assembly of railway tunnels excavated by means of drillingandblasting, the core contents and key technologies in respect of theoretical research, design method, construction method, and project management are described in detail. On this basis, the advantages of the technology of prefabrication and assembly of tunnels in realizing intelligent construction are analyzed, the technical path for realizing intelligent construction is provided, and the prospects thereof are put forward. The results can provide reference for related researches and practices.

Key words: drilling-and-blasting; railway tunnel, prefabrication and assembly, intelligent construction