关键词: 岩爆, 卸荷三轴试验, 变形破坏特征

Abstract: As one of the geological hazards, rockburst is often met in underground engineering under excavation unloading conditions of high geostress areas. According to the actual mechanics conditions, the triaxial test is designed to simulate the excavation of tunnel in this paper. The deformation-failure characters are elaborated. These results can play important roles in the mechanics mechanism of rockburst.

Key words: rockburst, triax ial test under unloading condition, deformation failure character