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2 425 219

(13)

(51)

IPC

E21C41/26(2006-01-01)

(21) (22)

Application

2009146668/03, 2009-12-15

(24)

Start date

2009-12-15

(22)

Actual filing date

2009-12-15

(45)

Published

2011-07-27

(72)

Inventor

Semenov Aleksandr SergeevichFaul' Al'Bert Al'Bertovich

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Gornyj Institut Imeni G.V. Plekhanova Universitet)"

OPEN DEVELOPMENT METHOD OF MINERAL DEPOSITS Russian patent published in 2011 - IPC E21C41/26

Abstract RU 2425219 C1

FIELD: mining.

SUBSTANCE: method involves construction of working flank, drilling-and-blasting preparation of rock for excavation, excavation and transportation of rock. Working flank of pit of convex-concave shape is formed during drilling and preparation of horizon with advance. At that, frontal work advance speed on projections forms working platforms of above-lying benches with width which is bigger than adjacent below lying benches, and working platforms of below lying overburden benches are formed of the width which is bigger than that of adjacent above-lying working platforms.

EFFECT: reducing the scope of work on removal of overburden and providing maximum capacity of the pit.

2 tbl, 2 dwg

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RU 2 425 219 C1

Authors

Semenov Aleksandr Sergeevich

Faul' Al'Bert Al'Bertovich

Dates

2011-07-27—Published

2009-12-15—Filed