METHOD OF EXTRACTING UNDEREXPLORED MINERAL FROM FLANKS OF OPENCAST Russian patent published in 1998 - IPC

FIELD: opencast mining of mineral deposits. SUBSTANCE: formed on contour of mineral occurrence in flank of opencast by two branches is section of road slip to opencast, and final exploration of mineral is carried out from elevations of its profile. Then slip branches are combined, road slip is reformed and final contours of working are formed. Analytic dependence of determination of elevation of point of joining of road slip branches is offered. EFFECT: higher efficiency of extraction due to reduced volumes and terms of performance of stripping operations by completion of exploration of minerals in the course of mining and rational contours of their extraction. 2 dwg