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在岩体工程中,岩石的力学特性对工程稳定性的影响较大,特别是岩石的时间效应和累积疲劳效应。为了避免岩石因蠕变和疲劳而引发灾害,学者们对岩石的蠕变及疲劳的机理和因此产生的物理力学性能的变化做了大量研究。通过总结岩石的蠕变和疲劳的性质、机理,从损伤的角度,着重对岩石蠕变和疲劳损伤的研究进展进行介绍。借鉴金属蠕变-疲劳交互作用研究的成果,对岩石蠕变-疲劳交互作用的性质、机理以及研究方法做了简单的探讨,为盐岩储气库的安全稳定研究提供参考。
In rock engineering, the mechanical properties of rocks have a great influence on the stability of engineering, especially the time effect and cumulative fatigue effect of rock. In order to prevent the rocks from catastrophic due to creep and fatigue, scholars have done a great deal of research on the creep and fatigue mechanism of rocks and the changes of their physical and mechanical properties. By summarizing the nature and mechanism of rock creep and fatigue, the research progress of rock creep and fatigue damage are introduced from the perspective of damage. With reference to the results of metal creep-fatigue interaction study, the properties, mechanism and research methods of creep-fatigue interaction of rock are briefly discussed, which provides references for the study of safety and stability of salt rock gas storage.