METHOD OF OPENCAST MINING OF HORIZONTAL AND GENTLY SLOPING MINERAL DEPOSITS

摘要

SUMMARY OF THE INVENTION: on the bottom across the front quarry mining extend transverse trench therein constructing a bulk portion Conveyor webs (TOP) and as the work of constructing the front top pillar axis. Simultaneously, parallel to the first trench is expanded board transverse trench, after which it constructing a bulk portion of the second top and also allowed pillar. The first trench as the work front is filled rock dump, and one piece of the work out. Simultaneously, begin to construct a bulk portion TOP prepared in the first trench again and the whole cycle of operations is repeated. 3 yl.