Designing waste rock barriers by advanced numerical modelling
Design of waste rock barriers forming safety berms for haul trucks requires knowledge of complex interactions which cannot readily be tested by physical means. An advanced numerical model based on non-smooth multi-domain mechanics is presented together with model calibration using limited full-scale...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2019-06-01
|
Series: | Journal of Rock Mechanics and Geotechnical Engineering |
Online Access: | http://www.sciencedirect.com/science/article/pii/S1674775518303895 |
id |
doaj-75dd66ec922643adb6c913d9bb8b0abe |
---|---|
record_format |
Article |
spelling |
doaj-75dd66ec922643adb6c913d9bb8b0abe2020-11-25T02:22:47ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552019-06-01113659675Designing waste rock barriers by advanced numerical modellingKlaus Thoeni0Martin Servin1Scott W. Sloan2Anna Giacomini3Centre for Geotechnical Science and Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia; Corresponding author.UMIT Research Lab, Umeå University, Umeå, SE-90187, SwedenCentre for Geotechnical Science and Engineering, The University of Newcastle, Callaghan, NSW 2308, AustraliaCentre for Geotechnical Science and Engineering, The University of Newcastle, Callaghan, NSW 2308, AustraliaDesign of waste rock barriers forming safety berms for haul trucks requires knowledge of complex interactions which cannot readily be tested by physical means. An advanced numerical model based on non-smooth multi-domain mechanics is presented together with model calibration using limited full-scale experimental data. Waste rock is represented by spherical particles with rolling resistance, and an ultra-class haul truck is represented by a rigid multibody system interconnected with mechanical joints. The model components are first calibrated and then the calibrated model is used for simulating various collision scenarios with different approach conditions and safety berm geometries. Numerical predictions indicate that the width of the berm is most critical for efficiently stopping a runaway truck. The model can also predict if a certain berm geometry is capable of stopping a runaway truck. Results are summarised in a series of diagrams intended for use as design guidelines by practitioners and engineers. Keywords: Discrete element method (DEM), Multibody dynamics (MBD), Non-smooth multi-domain dynamics, Granular materials, Ultra-class haul truck, Safety berm, Surface mininghttp://www.sciencedirect.com/science/article/pii/S1674775518303895 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Klaus Thoeni Martin Servin Scott W. Sloan Anna Giacomini |
spellingShingle |
Klaus Thoeni Martin Servin Scott W. Sloan Anna Giacomini Designing waste rock barriers by advanced numerical modelling Journal of Rock Mechanics and Geotechnical Engineering |
author_facet |
Klaus Thoeni Martin Servin Scott W. Sloan Anna Giacomini |
author_sort |
Klaus Thoeni |
title |
Designing waste rock barriers by advanced numerical modelling |
title_short |
Designing waste rock barriers by advanced numerical modelling |
title_full |
Designing waste rock barriers by advanced numerical modelling |
title_fullStr |
Designing waste rock barriers by advanced numerical modelling |
title_full_unstemmed |
Designing waste rock barriers by advanced numerical modelling |
title_sort |
designing waste rock barriers by advanced numerical modelling |
publisher |
Elsevier |
series |
Journal of Rock Mechanics and Geotechnical Engineering |
issn |
1674-7755 |
publishDate |
2019-06-01 |
description |
Design of waste rock barriers forming safety berms for haul trucks requires knowledge of complex interactions which cannot readily be tested by physical means. An advanced numerical model based on non-smooth multi-domain mechanics is presented together with model calibration using limited full-scale experimental data. Waste rock is represented by spherical particles with rolling resistance, and an ultra-class haul truck is represented by a rigid multibody system interconnected with mechanical joints. The model components are first calibrated and then the calibrated model is used for simulating various collision scenarios with different approach conditions and safety berm geometries. Numerical predictions indicate that the width of the berm is most critical for efficiently stopping a runaway truck. The model can also predict if a certain berm geometry is capable of stopping a runaway truck. Results are summarised in a series of diagrams intended for use as design guidelines by practitioners and engineers. Keywords: Discrete element method (DEM), Multibody dynamics (MBD), Non-smooth multi-domain dynamics, Granular materials, Ultra-class haul truck, Safety berm, Surface mining |
url |
http://www.sciencedirect.com/science/article/pii/S1674775518303895 |
work_keys_str_mv |
AT klausthoeni designingwasterockbarriersbyadvancednumericalmodelling AT martinservin designingwasterockbarriersbyadvancednumericalmodelling AT scottwsloan designingwasterockbarriersbyadvancednumericalmodelling AT annagiacomini designingwasterockbarriersbyadvancednumericalmodelling |
_version_ |
1724861686745137152 |