Geodynamic Hazard Assessment for Tectonic Structures in Underground Mining of North Ore Bodies in the Oktyabrsky Deposit
V. A. Uskov1, A. A. Eremenko1, T. P. Darbinyan2, V. P. Marysyuk3
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630091 Russia
2Mine Management, Polar Division, Nornickel, Norilsk, 663302 Russia
3Center for Geodynamic Safety, Polar Division, Nornickel, Norilsk, 663302 Russia
Keywords: Геодинамическое районирование, блочное строение, тектонические структуры, напряженно-деформированное состояние массива, разломы, ударопасность, горные работы, разработка, камеры, закладка, Geodynamic zoning, block structure, tectonic structures, rock mass stress state, faults, rockburst hazard, mining, stopes, backfill
Abstract
Various-rank tectonic structures are distinguished in the Norilsk Region. The first-order block structure is formed by intersection of rank I geodynamically active faults: Khatanga, Imangda-Kystykhtakh, Norislk, Fokin-Tangaralakh and other. Rank II faults are the Norilsk-Kharaelakh fault, which intersects the mine field, and other 7 structures. Using geological sections and boring records obtained within the mining lease, dip slips and oblique-slip faults of rank III, represented by ridges in the terrain, are plotted in the satellite image. In the rockburst-hazardous high-grade ore sites in Glubokaya mine, it is recommended to make safe zone by advance boring of destressing holes in underground openings in zone of rank III faults.
|
