Podorvanov A. Fundamentation of parameters of zones displace ment mine rocks at extract of abrupt layers with use of different ways of management of a roof.

. The displacement of mining breeds To development of methodical bases of definition of parameters of zones displacement of mining breeds, at a collection of abrupt coal layers with use of different ways of management of a roof. Method of research is the method of mathematical modeling. The analysis and generalization of results of tool supervision behind process displacement of mountain breeds and terrestrial surface is carried out at a collection abrupt of layers. The distinction in geomechanical processes is established at applica-tion of these circuits of a collection coal. The mathematical model displacement of mining breeds and terrestrial surface in conditions of a collection of abrupt coal layers by mines CRоfD is developed. Is shown, that at a collection of abrupt layers subsidence in a plane overlayer is satisfactorily described by integrated function Gauss. The technique of the forecast of parameters displacement of mining breeds and terrestrial surface is developed at a collection of abruptlayers, which application allows to accept adequate measures of pro-tection undermining of objects.