Determination of normative strength of embedment in diamond-shaped chambers
Abstract
The methodology of calculating the normative strength of backfill in the system of mining with sub-stage ore stripping in diamond-shaped chambers is considered. It is proposed to take as normative the largest design value of strength determined from the conditions of stability of the diamond-shaped chamber vault and stability of the complex in shape and structure inter-chamber pillar formed between the chambers.
Область исследования:
Mining
Funding:
None
References
- A.s. 1640457 MKI E21F15/00. Method of formation of a laying massif / G.G. Milekhin, A.A. Ivanov, Y.S. Obruchev, S.N. Abashin (USSR), Published 07.04.91. Bulletin No.13.
- Temporary rules for the protection of structures to natural objects from the harmful effects of underground mining of non-ferrous metal ore deposits with unstudied process of rock shear / VNIMI. L., 1986.
- Methodical guidelines for the management of mining pressure in continuous mining systems with hardening backfill at the mines of Norilsk MMC / VNIMI. L., 1987.
- Milekhin G.G., Bodnya I.V., Obruchev Y.S. Development system with sub-stage ore stripping and incomplete backfilling of the excavated space// Mining Journal. 1990. № 7.
- Milekhin G.G., Grokholskiy A.A., Abashin S.P. Stability of pillars during the development of deposits by diamond-shaped chambers// Abstracts of reports of VIII Ural scientific-technical conference on systems of underground development of non-ferrous metal ores/Unipromed. Sverdlovsk, 1989.
Similar articles
Prediction of solubility of materials containing iron oxide-sulfide associations in sulfuric acid media
1995 T. A. Orlova
Calculations and application of energy characteristics for roadheaders
1995 A. V. Bolshunov, I. P. Timofeev, D. A. Yungmeister
Improvement of methods of calculation and quality assessment of mining machines (by the example of Ural type feed drive)
1995 S. L. Ivanov, M. D. Kolomiitsov