摘要
岩爆是高地应力区地下工程中常见的一种卸荷破坏地质灾害现象。本文按照地下洞室开挖过程中围岩的实际受力状态,采用卸荷三轴试验方法,探讨了岩爆岩石的变形破坏特征和岩爆形成力学机制问题。
As one of the geological hazards, rockburst is often met in underground engineering under excavation unloading conditions in high geostress areas. According to the actual mechanics conditions, the triaxial test is designed to simulate the excavation of tunnel in this paper. The rock deformation-failure characters and mechanics mechanism of rockburst are also discussed.
出处
《山地学报》
CSCD
2000年第B02期102-107,共6页
Mountain Research
基金
国家自然科学青年基金项目(编号49602040)资助研究
关键词
卸荷状态
岩爆
岩石变形
破裂机制
实验岩石力学
Triaxial test under unloading conditions
deformation-failure characters
meehanics mechanism of rockburst
