Scheduling with fixed maintenance, shared resources and nonlinear feedrate constraints: a mine planning case study

Christina N. Burt, Nir Lipovetzky, Adrian R. Pearce, Peter J. Stuckey

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Given a short term mining plan, the task for an operational mine planner is to determine how the equipment in the mine should be used each day. That is, how crushers, loaders and trucks should be used to realise the short term plan. It is important to achieve both grade targets (by blending) and maximise the utilisation (i.e., throughput) of the mine. The resulting problem is a non-linear scheduling problem with maintenance constraints, blending and shared resources. In this paper, we decompose this problem into two parts: the blending, and the utilisation problems. We then focus our attention on the utilisation problem. We examine how to model and solve it using alternative approaches: specifically, constraint programming, MIQP and MINLP. We provide a repair heuristic based on an outer-approximation, and empirically demonstrate its effectiveness for solving the real-world instances of operational mine planning obtained from our industry partner.

Original languageEnglish
Title of host publicationIntegration of AI and OR Techniques in Constraint Programming
Subtitle of host publication12th International Conference, CPAIOR 2015 Barcelona, Spain, May 18–22, 2015 Proceedings
EditorsLaurent Michel
Place of PublicationCham Switzerland
PublisherSpringer
Pages91-107
Number of pages17
ISBN (Electronic)9783319180076
ISBN (Print)9783319180083
DOIs
Publication statusPublished - 2015
Externally publishedYes
EventInternational Conference on Integration of Artificial Intelligence and Operations Research Techniques in Constraint Programming for Combinatorial Optimization Problems 2015 - Barcelona, Spain
Duration: 18 May 201522 May 2015
Conference number: 12th
https://link.springer.com/book/10.1007/978-3-319-18008-3 (Conference Proceedings)
https://cpaior2015.uconn.edu/ (Conference website)

Publication series

NameLecture Notes in Computer Science
PublisherSpringer
Volume9075
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

ConferenceInternational Conference on Integration of Artificial Intelligence and Operations Research Techniques in Constraint Programming for Combinatorial Optimization Problems 2015
Abbreviated titleCPAIOR 2015
CountrySpain
CityBarcelona
Period18/05/1522/05/15
Internet address

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