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中文摘要：
由于湿度的作用与扩散的范围、时间有关，因此，湿度扩散造成的岩石力学性质劣化和变形随空间和时间而变化，这种变化是造成岩石流变的本源问题．从湿度扩散入手，通过引入湿度增加与材料力学参数弱化的物性关系，建立了湿度-应力-损伤耦合作用的岩石流变模型．试样蠕变和松弛效应的数值模拟结果再现了湿度扩散条件下岩石力学行为变化的时间效应．通过探讨本文的耦合作用流变模型与传统岩石流变模型之间的差异，进一步阐述了岩石流变行为的本源．
英文摘要：
Because the effect of humidity is related to the scope and time of humidity diffusion, the degradation of mechanical properties and the deformation in surrounding rocks caused by humidity diffusion varies with space and time, which is considered as the source of rheological behaviors of rock. Therefore, by introducing the relationship between the increase of humidity and degradation of rock mechanical properties, we propose the humidity-stress-damage coupling based rheological model. The simulations on creep and relaxation behavior of rock reconstructed the mechanism of rhelogical behavior of rock under humid condition. By the comparative analysis of the difference between the proposed rhelogical model and the conventional rheological model of rock, the source of rheological behavior of rock is further elaborated.
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