Analysis of Shear Characteristics of Deep, Anchored Rock Mass under Creep Fatigue Loading

To study the influence of earthquakes and engineering disturbances on deformation deeply buried rock masses, shear tests were carried out anchored sandstone marble granite masses under creep fatigue loading, a new model was established to characterize characteristics loading. The curves different lithologies clearly show three stages: attenuation, steady-state creep, accelerated creep. Fatigue loading can increase specimens, lower strength is, higher variable is. However, for same strength, with in load level, produced by presents linear downward trend. Considering changes mechanical properties mass is introducing function modulus, accuracy applicability are verified laboratory test data. provides theoretical basis support low-frequency or blasting loads.