Stockpile scheduling with geometry constraints in dry bulk terminals

In this article we consider how to construct schedules for the stacking and reclaiming activities of high-throughput dry-bulk export terminals (DBET) that operate large machines called stacker-reclaimers (SR) handle iron ore, coking coal thermal export. with persistent stockpiles, ever-changing geometry stockpiles can impose challenging scheduling constraints. For those situations, propose each stockpile is modelled in detail, instance as a collection heterogeneous sized blocks. This bench block model (BBM). We then demonstrate are manipulated via their BBM be integrated form manager within sophisticated DBET engine. Numerical testing engine three horizontal (HBBM) has been performed indicates application worthwhile, if not essential. The concept generic, highly flexible, integrable into existing optimisation routines. results provided superior other approaches simple silos. provide devoid any errors contrast others which cannot, computational overheads do no greater than previous approaches. case studies considered, it was also pleasing see solutions comparable quality key performance criteria (KPI) equivalent constructed without consideration achievable. new approach significantly reduce time perform terminal planning increase utilization resources terminal.