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2 540 125

(13)

(51)

IPC

E21C37/00(2006-01-01)

F42D3/04(2006-01-01)

(21) (22)

Application

2012140581/03, 2012-09-21

(24)

Start date

2012-09-21

(22)

Actual filing date

2012-09-21

(45)

Published

2015-02-10

(72)

Inventor

Kopytov Aleksandr IvanovichMasaev Jurij AlekseevichPershin Vladimir ViktorovichMasaev Vladislav Jur'Evich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet Imeni T.F. Gorbacheva"

RELIEF OPENING FORMATION Russian patent published in 2015 - IPC E21C37/00 F42D3/04

Abstract RU 2540125 C2

FIELD: mining.

SUBSTANCE: invention relates to mining and can be used in coal and ore pits in excavation at drilling-and-blasting. Proposed method comprises drilling wells, close in pairs, in spacings between three larger-diameter compensation wells. Note here that triangular lengthwise compensation cut-outs - strain compensators are made in said wells, close in pairs directed towards compensation wells.

EFFECT: higher efficiency of blasting jobs and making of relief openings.

4 dwg

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RU 2 540 125 C2

Authors

Kopytov Aleksandr Ivanovich

Masaev Jurij Alekseevich

Pershin Vladimir Viktorovich

Masaev Vladislav Jur'Evich

Dates

2015-02-10—Published

2012-09-21—Filed