Zvyagil's'kyj Y. Geomechanical foundations for prevention of chimney subsidence over abandoned mines

The stability of a geomechanical system, which one consists of a closed opening and rock mass around of it is studied. The processes of rock mass displacement and surface fall above abandoned mines are studied also. Selectively influencing on on dangerous segments of rock mass the geomechanical basis for an avoidance of a surface fall in neighborhood of coal mines openings are built, which one are closed. Regularity of long-time lowering of a rocks strata above openings of shallow mines are established. The features of the mechanism of rocks displacement around of closed mine shafts are uncovered. The new ways, technology and device for control of a condition of rock mass above the closed and abandoned openings are designed. The consulting model of selection of the rational solutions on control of rock mass above mines, which one are closed