Factors influencing the opening scheme deep horizons of quarries with the use of sloping underground transport development

The questions of improving the technology of completion of deposits are closely associated with an increase in the efficiency of technological processes and introduction of new methods and means of mechanization, optimization of process parameters to minimize the cost and increase the intensity of mining works in conditions of changing parameters of the working area depth of mining. For different conditions of completion of deposits by open-underground method, depending on the volume of traffic and parameters of quarries, it is proposed to use the appropriate underground transport workings. Optimization of the parameters of the sides of the quarry allows to increase the slope angle and increase the cost-effective depth of open-pit development. As one of the possible ways of refining deposits, the use of inclined underground transport workings is proposed by developing a quarry with a tunnel opening zone, or using underground mining operations, but without building capital vertical shafts. The article presents the factors that influence the opening scheme deep horizons of quarries with the use of sloping underground transport development with using articulated trucks and road trains. The factors are the basis for further search of rational parameters of openunderground technology of completion of instrument and sub-barrier reserves. To assess the depth of the transition to the opening scheme using the tunnel opening zone, it is necessary to take into account a number of factors: mining, technical, and economic. The results of such calculations are given in the article. The application of the proposed technology will increase the completeness of field development due to the involvement in the development of instrument and sub-barrier reserves, which is an urgent task in connection with the upcoming achievement of the stage of completion of deposits at many mining enterprises, both in the near future and in the long term.

Keywords: Open-underground development, dump truck, articulated dump truck, road train, combined development, steeply inclined road trains, tunneled slope, depth of transition.
For citation:

Cherepanov V.A., Glebov I.A. Factors influencing the opening scheme deep horizons of quarries with the use of sloping underground transport development. MIAB. Mining Inf. Anal. Bull. 2020;(3-1):351-367. [In Russ]. DOI: 10.25018/0236-1493-2020-31-0-351-367.


the Research was carried out within the framework of the State task № 075-00581-19-00, subject № 0405-2019-0005.

Issue number: 3
Year: 2020
Page number: 351-367
ISBN: 0236-1493
UDK: 622.27:622.6
DOI: 10.25018/0236-1493-2020-31-0-351-367
Article receipt date: 21.11.2019
Date of review receipt: 09.02.2020
Date of the editorial board′s decision on the article′s publishing: 20.03.2020
About authors:

Cherepanov V.A.1, researcher, e-mail: transport@igduran.ru,
Glebov I.A.1, junior researcher, e-mail: i.glebov@igduran.ru,
1 The Institute of Mining of the Ural branch of the Russian Academy of Sciences, 620075, Ekaterinburg, Russia.


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