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Permanent link (DOI): https://doi.org/10.7939/R3NP1WS60

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SCALE TESTING HARD ROCK WASTE DUMP STABILITY UNDER HAULER MOTION Open Access

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Other title
Subject/Keyword
Waste dump stability
Slope stability
Rolling resistance
Physical modeling
Mining equipment
Numerical modeling
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Rahmani, Niousha
Supervisor and department
Mohamed, Yasser (Department of Civil and Environmental Engineering)
Joseph, Tim (Department of Civil and Environmental Engineering)
Examining committee member and department
Lu, Ming (Department of Civil and Environmental Engineering)
Joseph, Tim (Department of Civil and Environmental Engineering)
Szymanski, Jozef (Department of Civil and Environmental Engineering)
Mohamed, Yasser (Department of Civil and Environmental Engineering)
Department
Department of Civil and Environmental Engineering
Specialization
Mining Engineering
Date accepted
2014-04-02T11:10:28Z
Graduation date
2014-06
Degree
Master of Science
Degree level
Master's
Abstract
Mining methods have changed and grown to fulfill extractive demands. Heavy machinery is used to extract overburden in open pit and open cast mines and to create waste dumps prone to slope stability issues. As the heaviest equipment operating on dump locations, mine haul trucks require a safe, stable surface to work on, so the stability of waste dumps is hugely important. Slope failures frequently occur on mine cut slopes, embankments, dumps, and road cut surfaces, so an improved understanding, monitoring, and support of such slopes is important to prevent failure, loss of equipment and fatalities. One of the most important differences between waste dump slopes and other slopes such as embankments or road cuts is not only that waste dumps are made up of loose face dumped material but also goes that trucks impact cyclic loads which affect stability. For example, significant weight at hundreds of tonnes has a huge impact on slope stability. This cyclic loading scenario on mine waste dumps has yet to be investigated fully. This study looks at the stability of waste dumps under the impact of mining equipment based on physical modeling (laboratory scale tests), numerical modeling and “Slide” slope stability software. During the study on the stability of waste dumps by physical modeling, data related to rolling resistance was also recorded. It has been concluded that the results from both the physical and numerical modeling determined acceptable states for truck path by both truck location for the chosen test material, Dolomitic limestone (1/3 and 1/2 truck width from crest), and constructing a safety berm along the crest of slope, and for wet conditions.
Language
English
DOI
doi:10.7939/R3NP1WS60
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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