重力型断裂面滑移的分形界面效应与动力学问题研究

STUDY ON FRACTAL INTERFACE EFFECT AND DYNAMIC PROBLEM OF GRAVITY-TYPE FRACTURE SURFACE SLIDING

提出断裂面上下盘靠重力作用而发生滑移──重力型断裂面滑移的分形界面效应唁动力学行为。研究了实地地质断裂面的分形性质：构造了具有自仿射分形件质的重力型断裂血滑移模型；利用物理模拟和数值模拟方法研究了重力型断裂血滑移的分形界面效应，建立了断裂面上下盘滑距与晰裂面分形维数的经验数量关系：研究了地质断裂面滑移的动力学行为，获得了断裂面滑移失稳的刚度准则。最后指出了该专题的研究方向。

Fractal interface effect and dynamic character of gravity-type fracture surface sliding between upper and lower pan of the fracture surface slip under the gravity are studied. The fractal character of the geologic fracture surface is studied. The gravity fracture surface sliding model with self-affine fractal character is established. The fractal interface effect of fracture plane sliding is analyzed by physical and numerical stimulations. The empirical quantitative relationship between the distance of fracture surface sliding and fractal dimension of fracture surface is obtained. The dynamic character of gravity fracture surface sliding is considered and the stiffness criterion of fracture surface sliding is proposed. In the end, the research direction of this special subject is given.