FIELD: mining.
SUBSTANCE: method provides the arrangement of a steep trench by means of hydraulic backhoe excavators and motor transport capable to pass steep slopes. The trench after its detonation is arranged in several stages, by dividing the steep trench into horizontally wedge-shaped layers by the height defined by the possible depth of digging of the excavators which excavate by downward digging consistently from top to bottom, maintaining in near-vertical parts of the layers the pre-set trench profile in its final position.
EFFECT: mining efficiency improvement.
3 dwg
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