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为研究岩石材料的时间效应,利用CSS-1950型岩石流变试验机,分别对绿泥石片岩和云母石英片岩进行压缩蠕变试验.基于试验结果,分析了蠕变对岩石荷载-变形关系的影响规律,研究了轴向变形随时间变化的基本趋势,论述了两种片岩在蠕变过程中的变形特性,并阐明了岩石的蠕变破裂形式及损伤机制。结果表明:岩石的蠕变特性与岩性、初始损伤密切相关;云母石英片岩的蠕变性好于绿泥石片岩。
In order to study the time effect of rock material, the compressive creep test of chlorite schist and mica-quartz schist was carried out by using CSS-1950 rock rheology testing machine.According to the test results, the relationship between creep and rock load-deformation was analyzed Influence law, the basic trend of the axial deformation with time is studied, the deformation characteristics of the two schist during the creep process are expounded, and the creep rupture and damage mechanism of the rock are clarified. The results show that the creep characteristics of rock are closely related to lithology and initial damage. Michemite quartz schist has better creep property than chlorite schist.