An open pit multistage mine production scheduling model for drilling, blasting and excavating operations

Kozan, Erhan & Liu, Shi Qiang (2014) An open pit multistage mine production scheduling model for drilling, blasting and excavating operations. In Orebody Modelling and Strategic Mine Planning 2014, AusIMM Press, Perth, Western Australia, pp. 329-334.

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This paper proposes a new multi-resource multi-stage scheduling problem for optimising the open-pit drilling, blasting and excavating operations under equipment capacity constraints. The flow process is analysed based on the real-life data from an Australian iron ore mine site. The objective of the model is to maximise the throughput and minimise the total idle times of equipment at each stage. The following comprehensive mining attributes and constraints have been considered: types of equipment; operating capacities of equipment; ready times of equipment; speeds of equipment; block-sequence-dependent movement times of equipment; equipment-assignment-dependent operation times of blocks; distances between each pair of blocks; due windows of blocks; material properties of blocks; swell factors of blocks; and slope requirements of blocks. It is formulated by mixed integer programming and solved by ILOG-CPLEX optimiser. The proposed model is validated with extensive computational experiments to improve mine production efficiency at the operational level. The model also provides an intelligent decision support tool to account for the availability and usage of equipment units for drilling, blasting and excavating stages.

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ID Code: 79573
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: Open-Pit, Multi-Stage, Mine Production Scheduling, Drilling, Blasting and Excavating
ISBN: 9781925100198
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > APPLIED MATHEMATICS (010200) > Operations Research (010206)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > RESOURCES ENGINEERING AND EXTRACTIVE METALLURGY (091400) > Mining Engineering (091405)
Divisions: Current > Schools > School of Mathematical Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 please consult author(s).
Deposited On: 18 Dec 2014 05:04
Last Modified: 05 May 2015 04:54

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