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Load-Haul-Dump operations in underground mines
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-7334-4934
2019 (English)Doctoral thesis, comprehensive summary (Other academic)Alternative title
Lastning och transport i underjordsgruvor (Swedish)
Abstract [en]

The research presented in this thesis addresses several aspects of loading operations inunderground mines, in particular tools and equipment selection. It also addresses the flexibilityof the fleet when subject to substantial disturbances, such as ore pass loss, and proposes integration of the scheduling system with discrete event simulation. The thesis begins with a study of discrete event simulation (DES) tools for loading operations in an underground mining system. The results show the benefits of using simulation but also the drawbacks.The thesis presents an analysis of energy consumption and exhaust gas emissions from diesel and electric LHDs. The results show the potential energy savings with the use of electric LHDs. Next, it focuses on the LHD operations affected by long-term ore pass loss (unavailability). It shows the effects on the production system (the ventilation requirements, production and waiting times when too many LHDs operate in the area affected by an ore pass loss) and highlights the need for a flexible solution and a mitigation strategy. Finally, the thesis studies the integration of ABB’s Ability Operations Management System (OMS) with the SimMine simulation model and how this affects LHD operations. The results show the benefits of using the joined platformas a testbed and decision support system.

Place, publisher, year, edition, pages
Luleå: Luleå University of Technology, 2019. , p. 155
Series
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
Keywords [en]
LHD, DES, simulation, underground mine, energy consumption, ventilation requirements, orepass loss, production scheduling, process control
National Category
Geotechnical Engineering Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-72950ISBN: 978-91-7790-316-1 (print)ISBN: 978-91-7790-317-8 (electronic)OAI: oai:DiVA.org:ltu-72950DiVA, id: diva2:1290029
Public defence
2019-05-24, F1031, Luleå, 10:00 (English)
Opponent
Supervisors
Available from: 2019-02-20 Created: 2019-02-19 Last updated: 2019-05-14Bibliographically approved
List of papers
1. Selection of discrete event simulation software for simulating mining operations
Open this publication in new window or tab >>Selection of discrete event simulation software for simulating mining operations
(English)In: Article in journal (Refereed) Submitted
Keywords
Loading system, DES, software selection
National Category
Geotechnical Engineering
Research subject
Mining and Rock Engineering
Identifiers
urn:nbn:se:ltu:diva-72944 (URN)
Available from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-02-19
2. Analyzing energy consumption and gas emissions of loading equipment in underground mining
Open this publication in new window or tab >>Analyzing energy consumption and gas emissions of loading equipment in underground mining
2015 (English)In: CIM Journal, ISSN 1923-6026, Vol. 6, no 4, p. 179-188Article in journal (Refereed) Published
Abstract [en]

In an environment of rising energy prices and mining at greater depths, cost-efficient loading and hauling equipment is essential. Conducted at an underground mining operation, this study analyzes the energy consumption and gas emissions of diesel and electric load-haul-dump machines (LHDs) with similar bucket capacities. Based on energy prices from the first quarter of 2014, results of discrete event simulation show that energy costs for diesel and electric LHDs are US$0.24/t and US$0.07/t, respectively. Also, diesel LHDs emit 2.68 kg CO2 per litre of diesel fuel, whereas using electric machines reduces the need for ventilation to mitigate engine heat and emissions and reduces energy costs.

National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
urn:nbn:se:ltu:diva-15252 (URN)10.15834/cimj.2015.24 (DOI)ebfbfc7e-7ebf-4eae-8ca1-67316147c07b (Local ID)ebfbfc7e-7ebf-4eae-8ca1-67316147c07b (Archive number)ebfbfc7e-7ebf-4eae-8ca1-67316147c07b (OAI)
Note

Godkänd; 2015; 20141021 (abusal)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2019-02-19Bibliographically approved
3. The effects of ore pass loss on loading, hauling and dumping operations and produciton rates in a sublevel caving mine
Open this publication in new window or tab >>The effects of ore pass loss on loading, hauling and dumping operations and produciton rates in a sublevel caving mine
(English)In: The Southern African Journal of Mining and Metallurgy, ISSN 2225-6253, E-ISSN 1543-9518Article in journal (Refereed) Submitted
National Category
Other Civil Engineering
Research subject
Mining and Rock Engineering
Identifiers
urn:nbn:se:ltu:diva-64104 (URN)
Projects
I2 Mine project
Funder
EU, FP7, Seventh Framework Programme
Available from: 2017-06-16 Created: 2017-06-16 Last updated: 2019-02-19
4. Automatic closed-loop scheduling in underground mining using DES
Open this publication in new window or tab >>Automatic closed-loop scheduling in underground mining using DES
Show others...
(English)In: Article in journal (Refereed) Submitted
National Category
Geotechnical Engineering
Identifiers
urn:nbn:se:ltu:diva-72948 (URN)
Available from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-02-19
5. Simulations of LHD operations and its effect on ventilation costs
Open this publication in new window or tab >>Simulations of LHD operations and its effect on ventilation costs
(English)In: Article in journal (Refereed) Submitted
National Category
Geotechnical Engineering
Identifiers
urn:nbn:se:ltu:diva-72946 (URN)
Available from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-03-01

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