Pyatachenko A. A substantiation of parameters in technology of physic-chemical strengthening of roof in the stretch sections of lavas of the slight stratums of Donetsk Basic

Object of research - technology of physic-chemical strengthening of rocks of an unsteady roof in the stretch sections of lavas. The purpose of work - substantiation of parameters in a technology of physic-chemical strengthening of roof in the stretch sections of lavas based on laws of filtration, seismic-acoustical, structural-mechanical properties of the infringed massif of rocks by operative definition of its parameters for a raise of an efficacy of a work at the of unsteady roof. In the work mine, laboratory and analytical methods of researches with application of devices for definition of the permeable of the massif of rocks and intensity seismic-acoustical waves which are taking place through it were used. Empirical and analytical dependences for an establishment of parameters of strengthening were established for the first time. The parameters of strengthening of roof were proved and the method of their operative definition was developed. The results of work are introduced on 4 mines of Don bass with economic effect of 78,000 UAH. The branch of use - mining.