In order to understand the corrosion influencing factors and the mechanism of each influencing factor of anchorage structures in underground engineering and improve the durability and long-term stability of permanent support structures in underground space

the research progress and achievements of the corrosion durability of anchorage structures in underground engineering are summarized and analyzed by combing literatures at home and abroad. Firstly

the necessity and urgency of research on corrosion durability of underground anchorage structures are pointed out. Secondly

the stress corrosion cracking mechanism of anchorage structures and the evaluation methods of stress corrosion are briefly described. Thirdly

the influencing factors of corrosion of underground anchorage structures are summarized

and the research status and mechanism of each influencing factor are discussed. Fourthly

the application of time-dependency analysis and reliability assessment in the study of durability of anchorage structures is introduced. Finally

based on the above analysis

the development trend of corrosion durability of underground anchorage structures is prospected in many aspects. It is pointed out that the transition from static analysis to dynamic analysis

the combination of qualitative and quantitative research

the development from single factor analysis to multi-factor analysis

the further development from macroscopic research to microcosmic research

and the evolution from deterministic analysis to probability and randomness analysis are the important directions to promote the research on corrosion durability of anchorage structures in underground engineering.