# Analysis of geotechnical factors influencing power consumption of excavators

Relevance. The technical justification of power consumption standards and the feasibility of linking them with factors that determine the degree of influence of the most significant production indicators on changes in electricity consumption is relevant. For the correct and most complete characteristics of power consumption, it is necessary to establish a quantitative assessment of the degree of influence of mining and technological factors and operating modes of mechanisms to identify the most significant factors and establish patterns of power consumption.Purpose and methods. The aim of the work is a comprehensive study of power consumption for individual technological operations of the mining quarry and forecasting consumption rates based on the application of probabilistic calculation methods. Results. To find the patterns of power consumption, probabilistic-statistical methods of calculation and mathematical modeling apparatus are used. Empirical and theoretical dependences of the electric power consumption of the excavator on the scooping parameters are given. The results of calculating the correlation parameters and equations of the dependences of the energy consumption for excavation on selected factors are presented. Conclusions. The nature of the power consumption of excavators is investigated, mining and technological factors are identified that have the greatest impact on their energy performance. The energy characteristics of excavators are constructed in the form of dependences of the total energy consumption as a function of productivity P, mining and geological properties of soil K and the angle of rotation for unloading . It was found that the correlation coefficient, which allows us to assess the degree of influence of the studied factors on power consumption, reaches a value of 0.774, which indicates a sufficient degree of influence of the selected parameters on the amount of power consumption.

Keywords: power consumption, excavator, mining factors, productivity, correlation coefficient, law of distribution, quarry, the power consumption, angle of rotation.
For citation:

Klyuev R.V., Gavrina O.A., Khetagurov V.N., Fomenko O.A. Analysis of geotechnical factors influencing power consumption of excavators. MIAB. Mining Inf. Anal. Bull. 2020;(11-1):146157. [In Russ]. DOI: 10.25018/0236-1493-2020-111-0-146-157.

Acknowledgements:
Issue number: 11
Year: 2020
Page number: 146-157
ISBN: 0236-1493
UDK: 621.311
DOI: 10.25018/0236-1493-2020-111-0-146-157
Article receipt date: 26.05.2020
Date of review receipt: 21.06.2020
Date of the editorial board′s decision on the article′s publishing: 10.10.2020

Klyuev R.V.1,3, Dr. Sci. (Eng.), Assistant Professor, Head of Chief, e-mail: kluev-roman@ rambler.ru;
Gavrina O.A.1, Cand. Sci. (Eng.), Assistant Professor;
Khetagurov V.N.1, Dr. Sci. (Eng.), Professor;
Fomenko O.A.2, Ph.D., director of the branch of the Southern Federal University;
1 North Caucasian Institute of Mining and Metallurgy (State Technological University), 362021, Vladikavkaz, Russia;
2 Southern Federal University, Rostov-on-Don, 344006, Russia;
3 Moscow Polytechnic University, 107023, Moscow, Russia.

For contacts:

R.V. Klyuev, e-mail: kluev-roman@rambler.ru.

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