ERA

Download the full-sized PDF of Simulated Learning Model for Mineable Reserves Evaluation in Surface Mining ProjectsDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R3CZ32B87

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Simulated Learning Model for Mineable Reserves Evaluation in Surface Mining Projects Open Access

Descriptions

Other title
Subject/Keyword
simulated learning model
mineable reserve
infill drilling
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Cuba-Espinoza, Miguel A
Supervisor and department
Boisvert, Jeffrey B. (Civil and Environmental)
Deutsch, Clayton V. (Civil and Environmental)
Examining committee member and department
Liu, Qi (Chemical and Materials)
Minnitt, Richard (University of Witwatersrand)
Pourrahimian, Yashar (Civil and Environmental)
Szymanski, Jozef (Civil and Environmental)
Department
Department of Civil and Environmental Engineering
Specialization
Mining Engineering
Date accepted
2014-07-02T09:24:45Z
Graduation date
2014-11
Degree
Doctor of Philosophy
Degree level
Doctoral
Abstract
The amount of information available for characterizing the geology of a deposit increases over time due to the continuous acquisition of data during mining. Throughout the lifetime of a mining project, the block model and the mining sequence are periodically updated to account for this new data. The acquisition of additional data increases the accuracy of the block model and clarifies the optimal mining sequence. There has been extensive research on mine planning, but current techniques do not consider the decrease in uncertainty as additional information becomes available. Conventional paradigms assume either 1) the kriged model is correct and uncertainty due to multiple realizations does not change the mining sequence, or 2) the mining sequence is unrealistically adapted to each realization. A new paradigm is proposed for evaluating minable reserves of surface mining projects. This new paradigm accounts for the effects of the continuous acquisition of additional information during the mining of the deposit. In the implementation, multiple scenarios characterizing the dynamic nature of mining and data collection are generated. Each scenario accounts for how the mine may develop over time as new information is acquired. This provides a more realistic framework for evaluating mineable reserves with an appropriate level of uncertainty. The new paradigm can be used to evaluate infill drilling. The acquisition of additional information increases the revenue of the mining sequence as the block model becomes progressively more accurate. However, this increment in the revenue comes at the cost of implementing the infill program. In the new paradigm, the infill drilling strategies are evaluated in terms of their contribution to profit, difference between increment in revenue and cost of infill drilling. The design of the mining sequence of the long-term plan may be problematic as each scenario has its own version of the mining sequence. To overcome this problem, the mining sequences of the scenarios are condensed into a few representative mining sequences by implementing customized clustering techniques. These few representative mining sequences can be used to design the mining sequence of the long-term plan along with contingency plans.
Language
English
DOI
doi:10.7939/R3CZ32B87
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.
Citation for previous publication
Cuba, M. A., Boisvert, J. B., & Deutsch, C. V. (2013). Simulated learning model for mineable reserves evaluation in surface mining projects. SME transactions, 527-534.

File Details

Date Uploaded
Date Modified
2015-01-08T08:05:01.423+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 11961034
Last modified: 2015:10:12 18:49:05-06:00
Filename: Cuba-Espinoza_Miguel_A_201406_PhD.pdf
Original checksum: ea23381483cbe0ba9db3205c61c81f87
Well formed: true
Valid: false
Status message: Invalid destination object offset=11870812
File title: Miguel Angel Cuba-Espinoza
File author: gracet
Page count: 165
File language: en-CA
Activity of users you follow
User Activity Date