An Effective Model of a Porous Block Medium with Slide Contact on the Interfaces

Abstract

The medium under consideration consists of identical rectangular cells. Every cell includes four porous blocks with slide contact on the interfaces of blocks. For such a medium, an effective model is established. This effective model is described by thirteen equations, is a five-phase model, and consists of four elastic phases and one fluid phase. In this model, five waves propagate. The front sets of three waves are convex, but two waves have concave front sets. The velocities of the waves along the axes are the roots of the equations that are derived in the paper. Bibliography: 8 titles.