Geomechanical Evaluation of Roof-and-Pillar Parameters in Transition to Underground Mining
A. B. MAKAROV1, I. YU. RASSKAZOV2, B. G. SAKSIN2, I. S. LIVINSKY1, M. I. POTAPCHUK2
1SRK Consulting (Russia) Ltd, ul. Kuznetskii most 4/3, Bld. 1, Moscow, 125009 Russia
2Institute of Mining, Far East Branch, Russian Academy of Sciences, ul. Turgeneva 51, Khabarovsk, 680000 Russia
Keywords: горно-геологические условия разработки, геодинамическое районирование, горные породы, напряженно-деформированное состояние, рейтинговые показатели, физико-механические свойства, математическое моделирование, параметры системы разработки, ground conditions, geodynamic zoning, rocks, stress state, rock mass rating indexes, physico-mechanical properties, mathematical modeling, mining system parameters
Abstract
The authors present studies into geomechanics of Berezitovoe gold-polymetal deposit at the stage of transition from open pit to underground mining. The authors have carried out geodynamic zoning and evaluated parameters of modern stress field. Rock mass ratings are used to assess physico-mechanical properties of rocks. Rock mass stress state at various stages of mining is examined using numerical modeling, and underground mining system parameters are evaluated using Mathews procedure and analytical relations.
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