Authors: A.Yu. Voronov

Title of the article: A mathematical model for optimization of mining shovel-truck system operation

Year: 2020, Issue: 2, Pages: 13-18

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 622.23.05

DOI: 10.26730/1816-4528-2020-2-13-18

Abstract: The urgency of the discussed issue. Material handling operations at open-pit mines are carried out mainly by heavy shovel-truck systems (STSs). One of the main problems of STSs is a rather low level of its operation quality. A powerful way to improve the STS operation quality is its optimization, based on the systems approach, according to which the work of the constituent elements of the system is studied by analyzing the STS operation as a whole. With regard to optimization of the STS performance indicators, the systematic approach means their optimal consistency with each other subject to meeting the requirements for the STS operation. The first step in optimizing the STS operation is the development of its mathematical model.
The main aim of the study is the development of the mathematical model for optimization of the mining STS operation.
The methods used in the study. Modern methods of data collection and processing, mathematical modeling, analysis and synthesis are used.
The results. Performance indicators of the STS operation are optimized according to its mathematical model, which includes the objective function and constraints, presented as linear regression analysis equations, directly linking the corresponding output operational indicators with optimized parameters. This makes it possible to use the mathematical apparatus of linear programming for solving. It is proposed to use generalized estimates as the optimization criterion, and individual parameters for optimizing the STS operation as optimized parameters. This simplifies optimization and increases its accuracy, and also provides the best degree of consistency of the optimized parameters between themselves and the external environment.

Key words: open-pit mining shovel-truck system mathematical model for optimization of the STS operation

Receiving date: 12.02.2020

Publication date: 30.06.2020

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