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2 082 070

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C1

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IPC

(21) (22)

Application

94015212/03, 1994-04-26

(22)

Actual filing date

1994-04-26

(45)

Published

1997-06-20

(72)

Inventor

Konanykhin V.A.Makarenko M.B.Konanykhin A.I.

(73)

Holder

Konanykhin Vasilij Aleksandrovich

METHOD OF CREATING CUTTING SPACE Russian patent published in 1997 - IPC

Abstract RU 2082070 C1

FIELD: mining industry. SUBSTANCE: method of creating cutting space in mine workings implies drilling of side and central blast-holes, charging of side blast-holes to full depth, and charging of central blast-holes with bottom charge and blasting them. Side and central blast-holes are drilled in parallel with leaving pillars between blast-holes located oppositely with relation to space of central blast-holes. Explosive charges are located in blast-holes diametrically distant from center of space. EFFECT: high efficiency. 4 dwg

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RU 2 082 070 C1

Authors

Konanykhin V.A.

Makarenko M.B.

Konanykhin A.I.

Dates

1997-06-20—Published

1994-04-26—Filed

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