METHOD FOR RE-ACTIVATION OF TEMPORARILY NOT OPERATING PIT SIDES

摘要

Method for re-activation of temporarily not operating sides of pits is in cyclic re-activation of temporarily not operating side with separation of working zones of ledges represented by two doubled ledges in height of re-activated side. Before working out blast rock mass with long cuts to height of doubled ledge at upper working platform of the upper doubled ledge one penetrates temporary trench with placement of blast rock mass at its one side. In the process of working-out blast rock mass of the upper doubled ledge with long cut one performs filling of that rock mass to formed trench till complete filling of its volume. At working out following long cut of that ledge volume of rock mass of cut together with volume of blast rock mass from the lower bulk placed at lower working platform under slant of the upper doubled ledge is re-excavated to the upper bulk at upper working platform of the ledge over filled temporary trench. Technical result is in simplification of technology of re-activation of temporarily not operating pit sides, increase of intensification of process of re-activation and decrease of expenses.