论文部分内容阅读
运用多分量的应变固体潮观测结果,可以计算出固体潮的主应变方向、主应力大小数值或剪切应变值,这些参数对研究地震触发、短临信息、断层活动和断层破裂等有重要意义。在以往的研究中,考虑到仪器的套筒内径、套筒外径、围岩等效杨氏模量和泊松比、套筒材料的杨氏模量和泊松比有比较复杂的关系。虽然认识到岩石的各项异性会对观测结果的分析产生一定的影响,但在分析时多采用岩石各向同性介质的本构关系进行研究分析。本文在研究中,采用岩石弹性模量各向异性的应力-应变本构关系,利用引潮力作为加载力源,对分量应变观测资料进行调和分析研究。
Using the multi-component strain tide observations, the principal strain direction, the principal stress magnitude or the shear strain value of the solid tide can be calculated. These parameters are of great significance for the study of earthquake trigger, short-and-short information, fault activity and fault rupture . In previous studies, considering the inner diameter of the sleeve, the outer diameter of the sleeve, the equivalent Young’s modulus and the Poisson’s ratio of the surrounding rock, the Young’s modulus and the Poisson’s ratio of the sleeve material are relatively complex. Although it is recognized that the anisotropy of rock will have an impact on the analysis of observation results, the constitutive relationship of rock isotropic medium is mostly used in the analysis. In this study, the stress-strain constitutive relation of anisotropy of rock elastic modulus is adopted. The tide force is used as the loading force source, and the harmonic observation of the component strain is analyzed and studied.