LABORATORY APPROACH TO THE STUDY OF ELASTIC-ANISOTROPY ON ROCK SAMPLES

The experimental approach (hardware and software) to the study of the elastic anisotropy of rocks on spherical samples under hydrostatic pre ssure up to 400 MPa is discussed. A substantial innovation of the exis ting measuring system and processing methods enabled us to make a deta iled investigation and evaluation of the kinematic as well as dynamic parameters of elastic waves propagating through anisotropic media. The innovation is based on digital recording of the wave pattern with a h igh sampling density of both time and amplitude. Several options and r esults obtained with the innovated laboratory equipment are presented.