Life-of-mine optimization for integrated open stope development and production scheduling using a mixed-integer linear programming framework

Extraction and development sequences must be scheduled strategically in order to maximize the life of mine. The complexities and computational difficulties associated with underground mine planning makes it challenging and open to further research. This paper presents a mathematical programming fram...

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Published in:Mining technology (2018) Vol. 132; no. 2; pp. 106 - 120
Main Authors: Appianing, Emmanuel John Andrew, Ben-Awuah, Eugene, Pourrahimian, Yashar
Format: Journal Article
Language:English
Published: London, England Taylor & Francis 03.04.2023
SAGE Publications
Subjects:
backfilling
capital (decline) development
Mixed-integer linear programming
open stope mining
ore pass development
production schedule
backfilling
open stope mining
capital (decline) development
production schedule
Mixed-integer linear programming
ore pass development
ISSN:2572-6668, 2572-6676
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Abstract Extraction and development sequences must be scheduled strategically in order to maximize the life of mine. The complexities and computational difficulties associated with underground mine planning makes it challenging and open to further research. This paper presents a mathematical programming framework based on mixed-integer linear programming (MILP) formulation for integrated open stope development and production scheduling. Additionally, the MILP model incorporates backfilling, operational levels control, and stope extraction duration control during production scheduling. The MILP model generated a net present value of $244.7 M and determined the capital, ventilation, operational, and ore pass development schedules as well as mining and processing schedules for a gold project with 25 years mine life. A total of 2.48 Mt of material was extracted and processed out of 2.88 Mt mineralized material.
AbstractList Extraction and development sequences must be scheduled strategically in order to maximize the life of mine. The complexities and computational difficulties associated with underground mine planning makes it challenging and open to further research. This paper presents a mathematical programming framework based on mixed-integer linear programming (MILP) formulation for integrated open stope development and production scheduling. Additionally, the MILP model incorporates backfilling, operational levels control, and stope extraction duration control during production scheduling. The MILP model generated a net present value of $244.7 M and determined the capital, ventilation, operational, and ore pass development schedules as well as mining and processing schedules for a gold project with 25 years mine life. A total of 2.48 Mt of material was extracted and processed out of 2.88 Mt mineralized material.
Author Pourrahimian, Yashar
Ben-Awuah, Eugene
Appianing, Emmanuel John Andrew
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Copyright 2023 Institute of Materials, Minerals and Mining and The AusIMM Published by Taylor & Francis on behalf of the Institute and The AusIMM 2023
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Keywords backfilling
open stope mining
capital (decline) development
production schedule
Mixed-integer linear programming
ore pass development
Language English
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Snippet Extraction and development sequences must be scheduled strategically in order to maximize the life of mine. The complexities and computational difficulties...
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SubjectTerms backfilling
capital (decline) development
Mixed-integer linear programming
open stope mining
ore pass development
production schedule
Title Life-of-mine optimization for integrated open stope development and production scheduling using a mixed-integer linear programming framework
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