Geomechanical Assessment of Mining Conditions at the Khingansky Manganese Ore Body
I. YU. RASSKAZOV, B. G. SAKSIN, M. I. POTAPCHUK, V. I. USIKOV
Institute of Mining, Far East Branch, Russian Academy of Sciences, ul. Turgeneva 51, Khabarovsk, 680000 Russia
Keywords: горно-геологические условия разработки, геодинамическое районирование, горные породы, физико-механические свойства, напряженно-деформированное состояние, математическое моделирование, система разработки, целики, удароопасность, mining-and-geological conditions, geodynamic zoning, rocks, physico-mechanical properties, stress-strain state, mathematical modeling, mining method, pillars, rockburst hazard
Abstract
The article reports the geomechanical assessment of rockburst-hazardous Khingansky manganese ore body (Poperechny extraction site) at the early stage of development. The researchers accomplished geodynamic zoning of the ore body, analyzed mining-and-geological and mine-technical conditions, and estimated parameters of physico-mechanical properties of host rocks and ore. Using numerical modeling, the stress state of the ore body and rock mass at various mining stages is assessed, and the bottom part of the Khingansky ore body is considered rockburst-hazardous.
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