ABSTRACT
One of the main components that determine the economic and technological efficiency of underground coal mining is the state of development workings. On the state of the underground workings is influenced a lot of geological, technological and operational factors. To one of the most influential factors fracturing of rock massif is included. Analysis of domestic and foreign research in the field of geomechanics and mine buildings (Malinin 1970; Parchevskiy & Simanovich 1966; Erofeev 1977) shows that are currently under intense fracturing, basically, means the number of fissures per unit length or area of rock massif (Shashenko & Pustovoytenko 2004). However, this definition refers to an already formed system of fissures, primarily as a result of tectonic processes, i.e. to the natural and the tectonic fracturing types. In turn, according to (Dolzhikov, Paleychuk & Kobzar 2010), under intense refers to a fracturing, which is characterized by an to increase in the number and parameters of fissures over a fixed period of time in a certain direction of space. This definition is the technological fracture corresponds more.
