Knyazkov O. Substantiation of coincident zones of heightened mining pressure influence on of preparatory dup mine working

Object - supported in the combined area of the promoted mountain pressure underground making; purpose - ground the influence of the combined areas of the promoted mountain pressure on stability of the preparatory making; methods are mathematical statistics, design by the method of eventual elements, model instrumental supervisions; novelty - empiric dependence, allowing to define the maximal settling of breeds in the earned additionally uglenosnoy layer different by complex consideration of gornotehnicheskih and structural-mechanical descriptions of array, is set; first it is set by the mathematical design, that the region of influencing of the combined area of the promoted mountain pressure of around salient angular part of layer is limited by a difficult protuberant surface which spreads from her in a roof and soil on deleting commensurable from long lava (at power of layer 1м and length of lava a 200м influencing of the combined area spreads on 130м). In this area the size of operating squeezing tensions in 1,2-2 times more than above rectilineal part of coal layer of the outside combined area; first it is set experimentally, that the increase of coefficient of concentration of tensions on 0,1 units within the limits of the combined area of the promoted mountain pressure in the conditions of anthracitic layers leads to reduction the heights of the preparatory making on the average on 0,06 m; results - recommendations are developed; it is inculcated on the GP "Rovenkiantratsit and "Sverdlovantratsit" mines", an economic effect made a 217,000 hrn; the enterprises of ugledobivayushey industry, scientific researches, educational process, are the sphere of the use