The paper uses methods of the deformable solid mechanics to describe mining-induced irreversible deformation and fracture processes in a rock mass, and proposes to construct constitutive relations of a discontinuity based on the value of fractal dimensionality of edges of the discontinuity. A deep-hole drilling model is constructed and used to relate the dimensions of ruptured zones in the well bore area and the ratio of natural stress components. The authors developed a statistic approach to determining the quantitative relation between parameters of the mining-induced seismic activity and stress field evolution in rocks, and have approved this approach in a real-life object. The formulated and solved inverse coefficients and boundary value problems allow estimating life time of design elements, which extraction technology includes, and the focal parameters of an incipient seismic event by the geo- medium monitoring data.
|