Comparison of cycle times for manual and semi-autonomous load haul dump (LHD) machines: an operational perspective at LKAB’s Kiirunavaara Mine
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| Titel: | Comparison of cycle times for manual and semi-autonomous load haul dump (LHD) machines: an operational perspective at LKAB’s Kiirunavaara Mine |
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| Autoren: | Muhammad Tariq, Anna Gustafson, Håkan Schunnesson, Sohan Singh Rajpurohit |
| Quelle: | International Journal of Mining, Reclamation and Environment. :1-22 |
| Verlagsinformationen: | Informa UK Limited, 2025. |
| Publikationsjahr: | 2025 |
| Schlagwörter: | Annan samhällsbyggnadsteknik, cycle time, productivity, Load haul dump (LHD), mine automation, Geoteknik och teknisk geologi, underground mining, Other Civil Engineering, sublevel caving, Geotechnical Engineering and Engineering Geology |
| Beschreibung: | Automation of LHDs and their increasing use in mines make it critical to understand their performance in actual mining environments. Cycle times of semi-autonomous and manual LHDs were compared to determine their productivity differences. Manual LHDs had shorter cycle times in 57% of the areas, while the semi-autonomous were faster in 43% of the areas. Cycle time distributions were evaluated, and a log-logistic distribution was proposed to simulate the total cycle time, a lognormal distribution to simulate the loading duration, a logistic distribution to simulate the dumping duration, and a small extreme-value distribution to simulate the speed of semi-autonomous LHDs. Funder: SUM (Sustainable Underground Mining);Fulltext license: CC BY |
| Publikationsart: | Article |
| Dateibeschreibung: | application/pdf |
| Sprache: | English |
| ISSN: | 1748-0949 1748-0930 |
| DOI: | 10.1080/17480930.2025.2496911 |
| Zugangs-URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-105419 |
| Rights: | CC BY |
| Dokumentencode: | edsair.doi.dedup.....08a711cc81810c3d3c6486e9e17242a9 |
| Datenbank: | OpenAIRE |
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Nájsť tento článok vo Web of Science | Abstract: | Automation of LHDs and their increasing use in mines make it critical to understand their performance in actual mining environments. Cycle times of semi-autonomous and manual LHDs were compared to determine their productivity differences. Manual LHDs had shorter cycle times in 57% of the areas, while the semi-autonomous were faster in 43% of the areas. Cycle time distributions were evaluated, and a log-logistic distribution was proposed to simulate the total cycle time, a lognormal distribution to simulate the loading duration, a logistic distribution to simulate the dumping duration, and a small extreme-value distribution to simulate the speed of semi-autonomous LHDs. Funder: SUM (Sustainable Underground Mining);Fulltext license: CC BY |
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| ISSN: | 17480949 17480930 |
| DOI: | 10.1080/17480930.2025.2496911 |