为全面了解硬包体力学模型的基本力学性质，本文对软、硬匀质介质模型，非匀质软、硬包体模型及含有软弱层或空穴的不连续介质模型进行了三维弹性有限元分析。在常规围压作用下，得到了各具不同特征的位移场、应力场及变形势能密度场，对硬包体模型的发震条件、震源分布及前兆机理进行了探讨性研究 In order to comprehensively understand the basic mechanical properties of the hard tissue mechanics model, three-dimensional elastic finite element method (FEM) is applied to the soft and hard homogeneous media model, the non-uniform soft and hard inclusion model and the discontinuous media model with weak layer or cavity. analysis. Under the action of conventional confining pressure, the displacement field, stress field and deformation potential density field with different features are obtained, and the seismogenic conditions, source distribution and precursory mechanism of hard inclusions model are discussed