Prethodno priopćenje
https://doi.org/10.17794/rgn.2019.4.6
A METHODOLOGY FOR TRUCK ALLOCATION PROBLEMS CONSIDERING DYNAMIC CIRCUMSTANCES IN OPEN PIT MINES, CASE STUDY OF THE SUNGUN COPPER MINE
Amin Moniri-Morad
; Department of Mining Engineering, Sahand University of Technology, 51335-1996, Tabriz, Iran
Mohammad Pourgol-Mohammad
; Department of Mechanical Engineering, Sahand University of Technology, 51335-1996, Tabriz, Iran
Hamid Aghababaei
; Department of Mining Engineering, Sahand University of Technology, 51335-1996, Tabriz, Iran
Javad Sattarvand
; Department of Mining and Metallurgical Engineering, University of Nevada, 89557, Reno, USA
Sažetak
Truck allocation problems are considered as one of the most substantial factors in the achievement of planned production capacity in the mining industry. Traditional truck allocation techniques (e.g. mathematical programming, queueing theories) have undergone different levels of simplifications in formulating actual haulage operations under heterogeneous circumstances. In this study, the truck allocation problem is analysed through the development of the simulation-based optimization (SBO) method for the optimization of truck assignment considering uncertainties during fleet operation. This method provides an integrated structure by the simultaneous combination of optimization and stochastic discrete-event simulation. The objective function is to minimize the total number of trucks for haulage operation with discrete-event simulation employed to model the constraints. As a case study, the fleet operation of the Sungun copper mine is investigated to accomplish an optimal truck allocation for various working benches in the mine site. Operation details are evaluated through different indicators such as utilization, waiting times, and the amount of transported materials for each working bench. Finally, the operation bottlenecks are recognized for each situation.
Ključne riječi
haul truck allocation; optimization; discrete-event simulation; production capacity
Hrčak ID:
228201
URI
Datum izdavanja:
11.11.2019.
Posjeta: 2.055 *