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2 080 315

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C1

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IPC

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Application

95105607/02, 1995-04-06

(22)

Actual filing date

1995-04-06

(45)

Published

1997-05-27

(72)

Inventor

Zhegrov E.F.Fal'Ko V.V.Tekunova R.A.Mordvinova N.A.Krivosheev N.A.Kantor V.Kh.

(73)

Holder

Ljuberetskoe Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD OF MANUFACTURING BOREHOLE CHARGE Russian patent published in 1997 - IPC

Abstract RU 2080315 C1

FIELD: borehole drilling. SUBSTANCE: method consists in using as explosive bundles of tubular mono- or dibasic powder which are dipped into borehole and free space between bundles and borehole walls is filled with loose industrial explosive or saturated ammonium nitrate aqueous solution. Method ensures increase in borehole charge density to 0.75-0.95 g/cu.cm and safe operation, as well as reduction in cost of drill-and-fire works by 1.3-2.5 times. EFFECT: enhanced efficiency and reduced cost. 3 cl, 3 dwg

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RU 2 080 315 C1

Authors

Zhegrov E.F.

Fal'Ko V.V.

Tekunova R.A.

Mordvinova N.A.

Krivosheev N.A.

Kantor V.Kh.

Dates

1997-05-27—Published

1995-04-06—Filed

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