ZONING OF THE «OLENIY RUCHEY»OPEN PIT FIELD BY DEPTH USING PROF. D.LAUBSCHER ROCK MASS CLASSIFICATION

Abstract

The article analyzes physical and mechanical
properties, structural failure, stressed-strained
rocks state, of the "Oleniy Ruchey” deposit located
in the south-eastern part of the Khibinsky massif.
Based on the data of geo-mechanical state analysis, D. Laubscher rock mass classification (MRMR)
has been carried out thus allowing to perform zoning of the deposit’s open pit field’s depth. On the
basis of these studies in the first approximation the
stable slope angles of the open pit walls within its
different parts are recommended.