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利用扫描电镜( S E M ),对香港白岗岩等岩样在单轴压缩状态下,进行细观结构(μm 尺度)观察,研究其微损伤的萌生、扩展、连接直至破坏的行为,分析了白岗岩等岩石的细观破坏机制及其与宏观力学行为的关系,得到了一些重要的感性认识和若干观察记录.为认识岩爆发生的机理及复杂应力状态下岩石损伤破坏的理论分析提供了实验依据
Using scanning electron microscopy (SEM), the rock sample of Hong Kong, such as the White Granite rock, was observed under the uniaxial compression state at a microscopic structure (micrometer scale) to investigate the initiation, propagation and connection of the micro-damage until the failure. The mechanism of meso-failure of rocks such as Baigang rock and its relationship with macroscopic mechanical behaviors have been obtained. Some important perceptual knowledge and some observation records have been obtained. It provides an experimental basis for understanding the mechanism of rockburst and theoretical analysis of rock damage and damage under complicated stress conditions