FEATURES OF WORKING OFF OF HIGH LEDGES IN CRAMPED CONDITIONS
Developed technology of mining high ledges in cramped conditions. The offered technology of low layers under gas permeable combined shelter allows to exclude the scattering pieces of rock mass derail a high ledges as when blasting and excavation of a rock mass. It will allow carrying out blasting, and dredging of the rock mass under conditions of high tightness of mountain works, when, under the slope of the escarpment are particularly important protected areas and objects, such for example, as trunk existing roads in the seizure, complexes of cyclic-line technology in quarries, etc.
Keywords: testing of high ledges, blasting buildings, narrow buildings.