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2 244 252

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IPC

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Application

2003123796/03, 2003-07-29

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Start date

2003-07-29

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Actual filing date

2003-07-29

(45)

Published

2005-01-10

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Inventor

Rubtsov S.K.Galchenko Ju.P.Viktorov S.D.Zakalinskij V.M.Shemetov Petr AleksandrovichKolomnikov Sergej SemenovichBibik Ivan Pavlovich

(73)

Holder

Fgup Vserossijskij Proektno-Izyskatel'Skij I Nauchno-Issledovatel'Skij Institut Promyshlennoj Tekhnologii Vnipipromtekhnologii

METHOD FOR ROCK-BLASTING AT OPEN-PIT MINING Russian patent published in 2005 - IPC

Abstract RU 2244252 C1

FIELD: mining art, in particular, open-pit mining of mineral resources by high benches.

SUBSTANCE: large-diameter single holes are replaced by a pair of divergent holes of a smaller diameter, in which one hole is always vertical, and the other one is inclined towards the bench; the single holes of the larger diameter are replaced with a pair of divergent bundles of parallel converged holes, in which one bundle is vertical, and the other is inclined towards the bench; the single holes of the larger diameter are replaced with a pair of divergent holes of a smaller diameter, in which one hole is vertical, and the other is inclined towards the bench and positioned in the vertical plane parallel with the first one and distant from it by 1-2 hole diameters; the single holes of the larger diameter are replaced by a pair of divergent bundles of parallel converging holes, in which one bundle is vertical, and the other is inclined towards the bench and positioned in the vertical plane parallel with the first one and distant from it by 1-2 hole diameters.

EFFECT: enhanced efficiency of blasting of the benches.

7 cl, 6 dwg

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RU 2 244 252 C1

Authors

Rubtsov S.K.

Galchenko Ju.P.

Viktorov S.D.

Zakalinskij V.M.

Shemetov Petr Aleksandrovich

Kolomnikov Sergej Semenovich

Bibik Ivan Pavlovich

Dates

2005-01-10—Published

2003-07-29—Filed