ABSTRACT
This paper reviews the background of the invention of the triple-mode shield machine/TBM, defines and classifies the triple-mode shield machine/TBM, explains the working principle of the triple-mode shield machine/TBM, and clarified the applicable geology formation and environment of the triple-mode shield machine/TBM. The application achievement of the triple-mode shield machine/TBM is summarized, and the improvement measures are proposed. It has an important reference for the construction of tunnel boring machine under similar strata and environmental conditions.
