Kolchik E. Geomechanical substantiation of extractive excavation stability at intensive coal bed working off

Dissertation was devoted to the problem of providing of firmness of making coulisses at intensive mining of coal layers with small-amplitude disjunctive dislocations. Conformities to the law of change of speed of displacements of breeds in the area of temporal supporting pressure and area of intensive displacements of breeds from speed of face advancing at presence of layer in of powerful monolithic sandstones a roof were set. It is set, that at presence of layer in a roof, that is developed powerful monolithic sandstones, and in default of within the limits of area coulisse of disjunctive violations, the disburdened area appears ahead of area of temporal pressure. In this area the height of making is multiplied, and an earthly surface rises above it. It allowed developing technological regulation of providing of firmness of making coulisses at intensive mining of coal layers, recommendations and technology of providing of firmness of making in the conditions of small-amplitude disjunctive dislocations.