Geomechanics 93. Strata mechanics, Numerical methods, Water jet cutting, Mechanical rock, Disintegration / Геомеханика 93. Механика пластов, Численные методы, Гидроабразивная резка, Механическая горная порода, Дезинтеграция

The process commonly called going underground has been very well observed recently around the world. In short it means rather rapidly developing transference of numbers of even highly civilized human activities to the underground space. Geosphere, having been traditionally used as source of energy and raw materials, has now become the space where any anthropogenic activity could be placed and realized. In this way, apart from mining, we can also find various facilities for industrial transport, waste deponies, sport and/or even cultural and social activities underground. Main reasons for it could be found in:
- Generally lower accessibility and growing prices of the land;
- specific properties of rock materials which could be effectively utilized (like thermoconductivity, permeability, strength, etc.);
- the possibility of separating some dangerous anthropogenic activities from the important components of the environment such as hydrosphere, atmosphere, etc.;
- comparatively large scale of geosphere, etc. <...>