MODEL OF BLOCK MEDIA TAKING INTO ACCOUNT INTERNAL FRICTION

The block medium is modeled by a discrete-periodic spatial lattice of masses connected elastic springs and viscous dampers. To describe the viscoelastic behavior interblock layers, rheological model internal friction with two Maxwell elements one Voigt element quality factor material as determining parameter proposed. Numerical experiments show that, within framework this interlayer model, it possible to select viscosity stiffness so that differs from given constant value no more than 5%. In one-dimensional case, proposed influence on dispersion properties studied shown greatest effect observed in low-frequency part spectrum. three-dimensional some geomechanical problems are numerically for half-space under action surface concentrated vertical load. Namely, attenuation velocity amplitudes blocks was depending Q-factor step Gaussian pulse. addition, we study layer impulse load case when both media but have different properties.