“In high-temperature environments, the deterioration of mechanical properties at the interface between cement slurry and surrounding rock affects the effectiveness of grouting reinforcement, posing new challenges to the stability control of surrounding rock. Through shear tests under high-temperature and variable temperature curing conditions, combined with acoustic emission monitoring and CT scanning technology, the influence of initial curing temperature and normal stiffness on the mechanical properties and failure mechanism of the interface was systematically studied, providing a solution to the stability control problem of surrounding rock.”