ABSTRACT
The paper presents the results on studying dynamic failures of a rock mass at various structural-scale levels: a rock sample, a rock mass around a single mining excavation, and an area of a rockburst-hazardous deposit. The state of the rock mass was estimated by specific strain energy values of samples. The energy parameters of the rock mass were determined by its elastic properties and the main components of the stress tensor. Critical rock strain energies were established, the excess of which can lead to various dynamic occurrences of rock pressure (dynamic failures).
