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Analysis of the performance of battery powered LHDs in sublevel caving using discrete event simulation
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-2605-2920
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering. LKAB (Luossavaara-Kiirunavaara Aktiebolag), 983-8, Kiruna, Sweden.ORCID iD: 0000-0002-7334-4934
Department of Mining and Mineral Processing Engineering, School of Mines and Geosciences, The University of Dar es Salaam, P.O. Box 35131, Dar es Salaam, Tanzania.
2025 (English)In: International Journal of Mining and Mineral Engineering, ISSN 1754-890X, E-ISSN 1754-8918, Vol. 16, no 1, p. 61-72Article in journal (Refereed) Published
Abstract [en]

Load-haul-dump (LHD) machines are powered by diesel, electric, battery, or hybrid systems. Diesel LHDs are efficient but produce noise and emissions. Trolley electric lines or cables are impractical for LHDs, while batteries offer high flexibility during operations but require frequent recharging. Despite the advantages of battery LHDs, studies are limited. This study used discrete event simulation to evaluate the performance of battery LHDs focusing on battery swapping stations and energy consumption in traditional and fork production layouts in a sublevel caving mine. The results showed the battery machines are more energy-efficient when working in a traditional layout than a fork layout. The daily energy consumption is 0.64% less in a traditional layout than a fork layout. The results also showed the selected battery swapping stations are optimal because productivity is not significantly affected by changing the swapping locations.

Place, publisher, year, edition, pages
InderScience Publishers, 2025. Vol. 16, no 1, p. 61-72
Keywords [en]
battery powered machine, battery swapping, mining production layouts, sublevel caving, discrete event simulation
National Category
Energy Engineering Energy Systems
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-112253DOI: 10.1504/IJMME.2025.145588OAI: oai:DiVA.org:ltu-112253DiVA, id: diva2:1950105
Note

Validerad;2025;Nivå 1;2025-04-09 (u8);

Available from: 2025-04-04 Created: 2025-04-04 Last updated: 2025-04-09Bibliographically approved
In thesis
1. Analysis of Production Area Layouts in Sublevel Caving Mines Using Discrete Event Simulation
Open this publication in new window or tab >>Analysis of Production Area Layouts in Sublevel Caving Mines Using Discrete Event Simulation
2025 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

A traditional production layout is typically adopted in sublevel caving mines. However, as mining operations progress to deeper levels, increasing stresses necessitate exploring alternatives for production layouts. Other aspects of traditional production layouts that need to be improved are productivity, development distance, safety, and automation. Possible alternatives to the traditional layout are the fork and the heart layouts which might potentially be used in production areas. To evaluate and compare the production capacity of these layouts, this study analyzed the productivity and energy consumption of Load-Haul-Dump (LHD)vehicles using discrete event simulation (DES) method. Productivity of diesel-powered LHDs was analyzed in the traditional, the fork, and the heart layouts; productivity and energy consumption of battery-powered LHDs were analyzed in the traditional and the fork layouts. Findings showed productivity was 9-10% and 38% higher in the traditional layout than in the fork and the heart layouts, respectively, when diesel-powered LHD operations were simulated. Energy consumption per tonne of battery-powered LHDs was 10-11% lower in the traditional layout than in the fork layout, and the productivity of battery-powered LHDs was 9% higher in the traditional layout than the fork layout. Although the production capacities of these alternative layouts are lower than the capacity of the traditional layout, alternative layouts can be preferred if the perimeter drive or ore passes are positioned farther away from the production drifts to mitigate instability in the structures near the orebody boundary. When designing a production area layout, several aspects need to be considered in addition to productivity to balance the potential trade-offs between productivity and other factors such as safety and stability.

Place, publisher, year, edition, pages
Luleå: Luleå University of Technology, 2025
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757
Keywords
Mining production layouts, sublevel caving, discrete event simulation, LHD
National Category
Mineral and Mine Engineering
Research subject
Mining and Rock Engineering
Identifiers
urn:nbn:se:ltu:diva-112254 (URN)978-91-8048-809-9 (ISBN)978-91-8048-810-5 (ISBN)
Presentation
2025-06-12, A1545, Luleå University of Technology, Luleå, 10:00 (English)
Opponent
Supervisors
Available from: 2025-04-07 Created: 2025-04-04 Last updated: 2025-05-09Bibliographically approved

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Altuntov, Firdevs KübraSkawina, Bartłomiej

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