Effective Models of Media Consisting of Alternating Porous and Elastic Layers

P097 EFFECTIVE MODELS OF MEDIA CONSISTING OF ALTERNATING POROUS AND ELASTIC LAYERS L.MOLOTKOV St.Petersburg Branch of Steklov Mathematical Institute Fontanka 27 191011 St.Petersburg Russia 1 Summary. For the medium consisting of alternating porous and elastic layers with slide contact on boundaries the effective model is established. This model is four-phase one and four waves propagate in it. In the case when thickness of elastic layers is very small the effective model is a partial case of the transversely isotropic Biot model. The investigations of wave propagation in porous and fractured media are fulfilled on the basis of the effective models.