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根据岩石矿物细胞元随机性参数赋值方法的基本思想,运用非均质岩石材料精细模拟试验方法,完成了考虑2类不同矿物细胞元构成的非均质岩石精细模型试件的制作,利用非均质岩石模型试件进行了单轴压缩研究,并结合数值模拟相关研究结果进行分析.结果表明,非均质岩石材料的变形特征由其组成矿物细胞元的变形特征决定;非均质岩石模型试件的弹性模量、极限强度等力学参数受矿物细胞元的影响较大;非均质岩石材料的宏观力学参数可用细观力学参数的平均值来表示,验证了运用数值模拟方法进行非均质岩石材料力学特性研究中的相关结论,为利用岩石矿物细胞元随机性参数赋值方法进行岩石材料非均质特性的研究提供了物理试验支撑.
According to the basic idea of random parameter assignment method of rock and mineral cell, using heterogeneous rock material fine simulation test method, we completed the production of heterogeneous rock fine model specimen considering two kinds of different mineral cell components, The uniaxial compression tests of the rock mass model specimens were carried out and the results of numerical simulation were analyzed.The results show that the deformation characteristics of the heterogeneous rock materials are determined by the deformation characteristics of the mineral elements in the heterogeneous rock model. The mechanical parameters such as elastic modulus and ultimate strength are greatly influenced by the mineral cell element. The macroscopic mechanical parameters of heterogeneous rock materials can be expressed by the average value of micromechanics parameters. The numerical simulation is validated for heterogeneity The relevant conclusions in the study of mechanical properties of rock materials provide the physical experimental support for the research on the heterogeneity of rock materials by using the method of stochastic parameter assignment of rock and mineral cells.