FIELD: mining.
SUBSTANCE: method involves blasting of rock massif, mining of temporary inclined trench of increased width with horizontal platform at its bottom, development of blasted rock massif with wedge-shaped entry ways, starting from lower one, by using an excavator, in one half of inclined trench on the side of worked-out area. Mined rock is transported in the second half of trench to the surface; upper entry way is mined with bulldoser; mined rock is transported to the bottom of lower entry way and steeply inclined access track is formed. The second half of inclined trench is developed in the same way by transporting the mined rock along already formed section of steeply inclined access track; width of access track sections is reduced to design one and downstream slope of steeply inclined access track is formed as per design marks.
EFFECT: higher efficiency of forming steeply inclined transport access track.
6 cl, 4 dwg
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