FIELD: mining.
SUBSTANCE: during cutting of a mine section, drilling rooms are tunnelled in direction of the highest value of the ore body shape complexity module: horizontal ones, if this module has the highest value along the line of the ore body length, and ascending ones, if the complexity module has the highest value along the line of the ore body descent. Section resources mining is carried out in sections along the entire length or height of the breakage section. Each section is broken using blast holes in layers to form an ore bank by explosion delivery. Ore bank compactness is ensured in process of its formation by serial cutting of layers of alternate width in each cut section, and their width increases in direction from the line of the cut section face to the depth of the massif. Thus formed ore bank adjacent to the face of the next mined section is displaced following the front of second mining by alternation of ore mass accumulation cycles in the ore bank and its layerwise removal and discharge from the outer side of the ore bank in respect to the face.
EFFECT: expanded area of application of highly mechanised technologies, increased efficiency of labour and safety of production works.
4 dwg
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Authors
Dates
2012-01-27—Published
2010-07-07—Filed