METHOD FOR DEVELOPMENT OF ROCKS IN OPENING CUT OF A TERRACE AT A SECTION WITH HEIGHT EXCEEDING ALLOWED HEIGHT OF EXCAVATOR SCOOPING

摘要

Method for development of rocks in opening cut of a terrace at section with height exceeding the allowed height of excavator scooping includes formation of working site, with determination of excess of the terrace height over the allowed height of scooping of excavator. In front of the section at distance from it, where - allowed angle of elevation of the working site of excavator, deg.; at formation of the working site one leaves under it the pillar with elevation at angle in direction of the section. Behind the section one forms the pillar as a working site inclined in direction from the section.