The course deals with fundamentals of geomechanics, properties of the rock environment, its voltage-transforming behavior and factors that influence the mechanical manifestations of the rock environment in the creation of underground spaces in general and their behavior in the long-term. The subject of the subject is also the question of rock mass degradation and methods of their evaluation, rheological behavior of the rock mass, energy, stability, induced seismicity and the occurrence of anomalous geomechanical phenomena and mutual interaction of all factors influencing the design of the reinforcement of the underground spaces and the method of consolidation of the rock massif.