Cut-and-fill stoping using mixed backfill

Multiyear exploitation of large iron ore fields of the Kursk Magnetic Anomaly in the foreseeable future will lead to exhaustion of the resource of the open-cut geotechnology as the reserves will be depleted, or open pits will reach their ultimate limits. Therefore, it is critical to find safe and efficient technologies of underground mining, which make it possible to dispose significant portion of mining waste in the goaf. The Kursk Magnetic Anomaly covers the agricultural land, thus, special attention should be paid to preservation of the earth surface and to the environmental safety of ore mining. In most cases, mining conditions in the Kursk Magnetic Anomaly are complicated by the presence of aquifers. Based on the main geological and geotechnical conditions and factors, the most suitable mining system is cut-and-fill. This article discusses the mining system design with stoping and mixed cemented/dry fill. The technology makes it possible to place all tailings and waste rock in the goaf and to eliminate dumping and tailings storage on the ground surface.

Keywords: iron ore deposit, accessing, mining system, stope, mixed backfill, self-propelled equipment, tailings, tailings storage.
For citation:

Smirnov A. A., Baranovsky K. V., Rozhkov A. A., Solomein Yu. M. Cut-and-fill stoping using mixed backfill. MIAB. Mining Inf. Anal. Bull. 2021;(5—1):62—76. [In Russ]. DOI: 10.25018/0236_1493_2021_51_0_62.

Acknowledgements:

The study was carried out under State Contract No. 075-00581-19-00, Topic No. 0405-2019-0005.

Issue number: 5
Year: 2021
Page number: 62-76
ISBN: 0236-1493
UDK: 622.272
DOI: 10.25018/0236_1493_2021_51_0_62
Article receipt date: 13.01.2021
Date of review receipt: 07.04.2021
Date of the editorial board′s decision on the article′s publishing: 10.04.2021
About authors:

Smirnov A. A.1, Cand. Sci. (Eng.), senior research worker of the laboratory of underground geotechnology, е-mail: geotech@igduran.ru;
Baranovskiy K. V.1, Cand. Sci. (Eng.), senior research worker of the laboratory of underground geotechnology;
Rozhkov A. A.1, Cand. Sci. (Eng.), senior research worker of the laboratory of underground geotechnology;
Solomein Yu. M.1, research worker of the laboratory of underground geotechnology;
1 The Institute of Mining of the Ural branch of Russian Academy of Sciences (IM UB RAS), Ekaterinburg, Russia.

 

For contacts:
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