Investigation of the stressed state of pillars under the chamber-pillar system of development at the Mayak mine
Abstract
The ore deposit developed by the Mayak mine consists of disseminated and slump ores. Solid ores are located below the bulk of disseminated ores in highly fragmented and crushed rocks with sharply reduced stability. The thickness of these rocks in the immediate roof varies from 0.3-0.6 to 4.7 m, in the soil - from 0.5 to 5.5 m. The dip angle of the deposit varies within 3-12°, increasing up to 25-30° in some places on the flanks. The depth of development is 200-260 meters.
Область исследования:
(Archived) Without section
Funding:
None
References
- Ivanov K. I. et al. Investigation of deformability of columnar coal pillars in mine conditions. Technology and Economics of Coal Mining, No. 1, 1966.
- Nesterenko G. T., Tverdovsky R., K., Artemov R. P. Improvement of the method of unloading for determination of stresses in strong fractured rocks. Proc. VNIMI, vol. 62, 1966.
- Paliy V. D. et al. Investigation of the stressed state of heterogeneous pillars. Proc. VNIMI, vol. 62, 1966.
Similar articles
Possible causes of rock shoots in loose workings on the example of Khibiny apatite deposits
1969 V. I. Krapivin, A. G. Protosenya
Influence of concrete supports on bearing capacity of ore pillars under chamber mining systems
1969 V. P. Ushenin