THE DEVELOPMENT OF MEASURES ON THE INCREASE OF STABILITY OF THE ROOF IN THE WALLS WITH INDIVIDUAL SUPPORT WITH THE EXTRACTION OF THE THIN FAST PLASTS OF DONBASS IN THE DEEP HORIZONS

Abstract

The laws of influence on the stress-deformed condition of the pre-face field of the coal massive and rocks of the direct roof of parameters of the individual supports and Certificates of the attachment. The purpose of the work: the development of methods of selection and design of the individual supports attachment Certificate parameters in the wallson the plasts with the unstable roofs. The empirical dependence of the parameters of the direct roof deterioration rock field over the zone of the coal pressing-out and the coal plast strength has been established, the interconnection between the resistance of the pre-face support, the width of the pressing-out zone and power of the destroying rocks has been shown. The methods of prognosis of the direct roof stability and the design of the rational parameters of the Certificates of the walls supports with the individual supports. The experimental-industrial checking of the Certificates of attachment to be recommended on the mines of PA "Ordzhonikidzeugol" and PA "Artemugol". The efficiency: the increase of stability of the direct roof in the working space the reduction of the labour and expenditure of the forest materials by about twice. The field of application: the mines, developing the thin and middle power steep and steep-inclined coal plasts on the large depthsAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio