有限元法预测贯通节理岩体三维等效弹性参数

采用节理有限元法对贯通节理岩体的变形特性以及等效本构关系进行研究，分别对含有一组和三组节理的岩体等效弹性常数进行了预测。与解析方法相比，数值方法可以不必做太多的假设，能对节理岩体的力学行为进行综合分析，从而可得到包含完整岩石与节理的统一的本构关系，并可研究节理面几何形态的影响。

Estimation of 3-D Equivalent Elastic Constants of Penetrative Jointed Rock Mass by FEM

The deformation characteristics and equivalent constitutive relation of jointed rock masses were studied by finite element method. The 3 D equivalent elastic constants of rock masses with one set or three sets of joints were estimated respectively. Compared with analytical methods, using numerical method needs not to make many assumptions about the model. It can make synthetic analysis about the mechanical behaviors of jointed rock masses and can obtain an unitive constitutive relation of jointed rock masses. The effects of the geometrical shapes of joint faces on the mechanical properties of rock masses can also be investigated by FEM.