Abstract: The current global economy is facing tremendous downward pressure due to the lasting impact of extreme weather, COVID19 pandemic, and regional wars. Boosting economic vitality and driving sustained economic growth via technological innovation and industrial upgrading has become a common choice for major global economies. Digital transformation and intelligent construction are being vigorously developed in China. Some of the advanced technologies in the fields of 5G communications, artificial intelligence, and the Internet of Things have been gradually integrated into the production and management. The overall goals and technical paths of intelligent tunnel construction are presented and a series of intelligent construction technologies used in shield/TBM and drillingandblasting methods are introduced. Combined with cuttingedge technologies, the main issues and development prospects encountered in intelligent construction are discussed, thereby providing an outlook. The main conclusions are presented as follows: (1) The upgrading of tunnel construction from mechanization to intelligence is an inevitable trend. (2) The intelligent construction of tunnels can be divided into two stages: primary and advanced. Tunnel construction in the primary stage only realizes intelligent equipment operations in individual scenarios and simple operations. The advanced stage refers to the realization of the entire process of tunnel construction, multiscenario, intelligent perception, decisionmaking, interconnection, and collaboration. (3) Intelligent prefabricated production line + onsite intelligent assembly + digital control will become the trend in tunnel construction. (4) Intelligent construction will introduce new vitality into the tunnel industry and promote industry upgrading.

Key words: shield/TBM, drilling and blasting method, tunnel; intelligent construction, intelligent interconnection, digital interface, data standard