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GEOTECHNOLOGY
ArticleName Substantiation of stable open pit walls designs in tectonically stressed hard rock open pit mines
ArticleAuthor Kozyrev A. A., Rybin V. V., Bilin A. L., Fokin V. A., Мelik-Gaikazov I. V.
ArticleAuthorData

The Establishment of RAS Mining Institute KSC RAS:

A. A. Kozyrev, deputy director, Prof., Dr. Sci. (Eng.), e-mail: kozar@goi.kolasc.net.ru

V. V. Rybin, senior research associate, Ph. D. (Eng.), tel.: (81555) 7-91-25

A. L. Bilin, senior research associate, Ph. D. (Eng.), tel.: (81555) 7-91-27

V. А. Fokin, leading research associate, Dr. Sci. (Eng.), e-mail: fva666@goi.kolasc.net.ru

 

“Kovdorsky GOK” JSC:

I. V. Мelik-Gaikazov, technical director, Ph. D. (Eng.), e-mail: Igor.Melik-Gaikazov@eurochem.ru

Abstract
The paper presents a technique which is based on the scientific and pilot investigations results, and applied in geomechanics substantiation of the open pit slope stability parameters for hierarchy-block rock masses, as well as the open pit benches and pit walls designs with close-to-vertical slopes, and the final pitwall technologies that minimize instability of rocks around the excavation.
Investigations were carried out with the participation of the experts of “Kovdorsky GOK” JSC and “Apatit” JSC, being funded from RFFI 09-05-12064-OFI_M.
keywords Open pit bench and wall stability, super-deep open pit design, tectonically stressed rocks, vertical bench slopes, drilling-and-blasting technique in the open pit outline zone, geomechanics substantiation.
References

1. Experience of carrying out the increasing of the stability of pit benches and walls, and usage of new equipment in mining industry: Proceedings of scientific-and-technical Conference. May, 1990. Kovdor, Murmansk: Publ. of Science-and-Equipment Centre of Union of Scientific and Research Society of USSR, 1990 (in Russian).
2. Pre-project developments on optimization of the parameters and regimes of the Kovdor MMC pit extention within the project contours in the connection with adjusting the pitwall slope angles and the technical solutions on cyclical-and-continuous method (Part IV). Report on e/a No. 1602-70-95. Giproruda JSC. St. Petersburg, 1996 (in Russian).
3. Zhirov D. V., Gorbunov Yu. G., Shpachenko A. K. et al. The evolutional reconstruction of fragile deformations, the Njorkpakhk apatite-nephelne ores deposit. An innovation potential of the Kola science. Under the editorship of V. T. Kalinnikov. Apatity: KSC RAS, 2005 (in Russian)
4. Fokin V. A. Planning and production of drilling-and-blasting operations in the final benches formation at the ultimate deep open pit outline. Apatity: KSC RAS, 2004 (in Russian).
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