ABSTRACT
ABSTRACT: Due to the urgent need for safe construction at great depths, the study of the mechanisms of rock deformation and failure is of great importance. The study of rock mechanics can be accomplished by using the true triaxial test (TTT) machine which is capable of recreating a stress and hydraulic pressure environment. After a brief review of the development of the TTT machine and the introduction of Mogi-type loading boundary conditions, a series of numerical tests was performed to investigate the factors involved in the tests such as non-uniform deformation of the rigid platen, loading eccentricity, the end friction effect and the corner effect. In addition, the formation of a failure surface was also investigated. Through the studies, some indices and suggestions are proposed for better data acquisition during the TTT experimental process.
