- Title
- Mixed integer programming based maintenance scheduling for the Hunter Valley coal chain
- Creator
- Boland, Natashia; Kalinowski, Thomas; Waterer, Hamish; Zheng, Lanbo
- Relation
- Journal of Scheduling Vol. 16, Issue 6, p. 649-659
- Publisher Link
- http://dx.doi.org/10.1007/s10951-012-0284-y
- Publisher
- Springer
- Resource Type
- journal article
- Date
- 2013
- Description
- We consider the scheduling of the annual maintenance for the Hunter Valley Coal Chain. The coal chain is a system comprising load points, railway track and different types of terminal equipment, interacting in a complex way. A variety of maintenance tasks have to be performed on all parts of the infrastructure on a regular basis in order to assure the operation of the system as a whole. The main objective in the planning of these maintenance jobs is to maximize the total annual throughput. Based on a network flow model of the system, we propose a mixed integer programming formulation for this planning task. In order to deal with the resulting large scale model which cannot be solved directly by a general purpose solver, we propose two steps. The number of binary variables is reduced by choosing a representative subset of the variables of the original problem, and a rolling horizon approach enables the approximation of the long term (i.e. annual) problem by a sequence of shorter problems (for instance, monthly).
- Subject
- Hunter Valley coal chain; maintenance scheduling; mixed integer programming; operations research
- Identifier
- http://hdl.handle.net/1959.13/1039892
- Identifier
- uon:13719
- Identifier
- ISSN:1094-6136
- Language
- eng
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