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中文摘要：
基于岩石全自动流变伺服仪上得到的绿片岩三轴流变试验数据,分析蠕变曲线的特征,构造出能够表现岩石衰减蠕变和加速蠕变阶段特征的非线性函数,引入到广义Bingham的蠕变本构方程中,得到一个新的非线性蠕变模型,该模型的材料参数较少.通过绿片岩流变数据对新的非线性蠕变模型的参数进行辩识,得到了蠕变模型的材料参数.对蠕变模型计算结果和试验结果的比较表明,该模型能够很好的描述蠕变曲线中的初始衰减蠕变阶段、稳态蠕变阶段和加速蠕变阶段,证明了该模型的正确性和合理性.
英文摘要：
According to the experimental data of greenschist specimen obtained from servo-controlled rheology test equipment for rock the characteristics of the creep of greenschist is analyzed. On this basis, a new nonlinear creep model is established by introducing the nonlinear attenuation and acceleration characteristics of rock creep into the generalized Bi function describing the ngham creep constitutive equation. The parameters of the model are determined by rheology test data. This model can well describe the variation of creep in the period of attenuation, steady period and period of acceleration. The validity of the model is verified by experimental data.
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