METHOD OF CONSTRUCTION OF HIGH BENCHES OF PIT FLANK Russian patent published in 1997 - IPC

Abstract RU 2076210 C1

FIELD: mining; methods of construction of stable benches. SUBSTANCE: bench is formed of two approximately equal subbenches at angle of slope about 50 deg. Safety area is formed in zone of seepage of ground waters. Then, slopes are provided with balancing broken rock to form generating line so that the distance from the crest of lower subbench to generating line amounts to 0.5-0.6 m. EFFECT: higher efficiency.

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RU 2 076 210 C1

Authors

Oleksik N.I.

Davletshin R.Kh.

Dates

1997-03-27—Published

1994-09-13—Filed