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Numerical Simulatio...
Numerical Simulation of Gravity Flow in Sublevel Caving Based on Polyhedron DEM
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- Yi, Changping (författare)
- Luleå tekniska universitet,Geoteknologi
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- Johansson, Daniel (författare)
- Luleå tekniska universitet,Geoteknologi
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- Wimmer, Matthias (författare)
- LKAB, Kiruna, Sweden
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- Nordqvist, Anders (författare)
- LKAB, Kiruna, Sweden
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- Greberg, Jenny (författare)
- LKAB, Kiruna, Sweden
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- Rodriguez San Miguel, Carlota (författare)
- Luleå tekniska universitet,Geoteknologi
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(creator_code:org_t)
- Springer Nature, 2024
- 2024
- Engelska.
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Ingår i: Mining, Metallurgy and Exploration. - : Springer Nature. - 2524-3462 .- 2524-3470. ; 41:1, s. 91-98
- Relaterad länk:
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https://doi.org/10.1...
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https://ltu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The gravity flow behavior of blasted ore and caved waste in sublevel caving (SLC) mines is complex. The shape of fragmented ore and caved waste is identified as one of the principal factors influencing the gravity flow of ore. To investigate the effect of the particle shapes on the gravity flow, a code was developed to generate polyhedral fragments in different shapes and divide them into internal elements. Then these fragments were imported in the LS-DYNA code to generate SLC models containing blasted ore and caved waste and model the extraction process. To model the non-continuous loading process, the gravity flow was considered to be an intermittent process by setting a switcher at the extraction point. The flow behavior of ore from the numerical modeling is in agreement with the experimental results. The cumulative dilution of ore by waste is up to around 30%, which agrees with the results of the field survey.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Geoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Geotechnical Engineering (hsv//eng)
Nyckelord
- Cumulative dilution
- Gravity flow
- Polyhedron DEM
- Sublevel caving
- Mining and Rock Engineering
- Gruv- och berganläggningsteknik
- Centrumbildning - Centrum för avancerad gruvteknik och metallurgi (CAMM)
- Centre - Centre for Advanced Mining & Metallurgy (CAMM)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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