| 摘要 |
FIELD: mining. ^ SUBSTANCE: benches are developed by pillar and peripheral splits, wells are drilled within the limits of peripheral split, charged and exploded, peripheral split is developed as advanced relative to pillar split, main and auxiliary wells are drilled in massif of pillar split as horizontal along pillar, arranging a row of auxiliary wells higher than the middle of bench, wells are charged by their stemming with low-density material on both sides and exploded. ^ EFFECT: reduced amount of rocks dropped to lower arranged horizons, decreased volumes of additional handling related to lifting of exploded rocks dropped at lower arranged benches to the horizon of their primary location, increased efficiency of mining works. ^ 1 ex, 2 tbl, 8 dwg |
