论文部分内容阅读
本文在对脆性岩石力学性质的实验研究的基础上,探讨了脆性岩石的广义弹性模量,广义弹性泊松比,不可逆变形泊松比以及岩石的损伤变形特征,从而定义了新的岩石损伤表征量.建立了脆性岩石的弹性损伤耦合本构方程和损伤演化方程.并采用石英砂岩对所建立的岩石损伤本构方程在单轴压缩实验中进行验证,结果表明,理论分析与实验结果吻合较好.
In this paper, on the basis of experimental research on mechanical properties of brittle rock, the generalized elastic modulus, generalized elastic Poisson’s ratio, irreversible deformation Poisson’s ratio and rock damage characteristics of brittle rock are discussed, thus defining a new rock damage characterization. Quan. The elastic damage coupled constitutive equations and damage evolution equations for brittle rocks were established. The established damage constitutive equation of rock was verified by uniaxial compression experiments using quartz sandstone. The results show that the theoretical analysis is in good agreement with the experimental results. it is good.