Abstract

In the context of seismic wave propagation, the boundary conditions for two porous media in contact are not yet well established. There are two competing schools of thought, namely, due to Deresiewicz and Skalak (1963) and de la Cruz and Spanos (1989). In here, a critical assessments of the both are made. In this process a novel result is established that at a boundary total, solid, and fluid tractions are continuous as well as equal to each other.