A comparative study of truck cycle time prediction methods in open‐pit mining

Emmanuel K. Chanda (School of Civil, Environmental and Mining Engineering, The University of Adelaide, Adelaide, Australia)
Steven Gardiner (Kalgoorlie Consolidated Gold Mines, Kalgoorlie, Australia)

Engineering, Construction and Architectural Management

ISSN: 0969-9988

Publication date: 7 September 2010

Abstract

Purpose

The purpose of this paper is to compare the predictive capability of three methods of truck cycle time estimation in open‐pit mining: computer simulation, artificial neural networks (NNs), and multiple regressions (MRs). The aim is to determine the best method. The most common method currently used is computer simulation.

Design/methodology/approach

Truck cycle times at a large open pit mine are estimated using computer simulation, artificial NNs, and MRs. The estimated cycle times by each method are in turn compared to the actual cycle times recorded by a computerized mine monitoring system at the same mine. The errors associated with each method relative to the actual cycle times are documented and form the basis for comparing the three methods.

Findings

The paper clearly indicates that computer simulation methods used in predicting truck cycle times in open‐pit mining underestimate and overestimate the results for short and long hauls, respectively. It appears that both NN and regression models are superior in their predictive abilities compared to computer simulations.

Research limitations/implications

The cycle time prediction models developed apply to a specific mine site and one has to be careful not to directly apply these models to other operations.

Practical implications

The paper describes the implementation of regression and NN modelling. An opportunity exists for mines to utilise the large volumes of data generated to predict truck haulage cycle times more accurately and hence, improve the quality of mine planning.

Originality/value

The paper addresses an area of need in the mining industry. Accurate prediction of cycle times is critical to mine planners as it impacts on production targets and hence, the budgets.

Keywords

Citation

Chanda, E. and Gardiner, S. (2010), "A comparative study of truck cycle time prediction methods in open‐pit mining", Engineering, Construction and Architectural Management, Vol. 17 No. 5, pp. 446-460. https://doi.org/10.1108/09699981011074556

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Publisher

:

Emerald Group Publishing Limited

Copyright © 2010, Emerald Group Publishing Limited

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