PCCE also completed a series of pipe loop tests during the year to characterise the flow behaviour of high density kimberlite tailings for the Gope project feasibility study and the Kimberley mixed dumps reclamation project.
PCCE has also been awarded a contract to design a new hydraulic backfill distribution system for Boliden's Kristineberg mine in Sweden.
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Robert Cooke of Paterson & Cooke Consulting Engineers (PCCE
) points out(6) that: "A wide range of materials are used in hydraulic backfilling and the pipeline flow behaviour of these mixtures varies considerably." PCCE
's work has shown that "despite the large differences in constituent materials and flow behaviour, a common approach can be applied to analysing the flow of all hydraulic backfills." PCCE
's work has also determined that backfill quality control is an important area for further development.
* One of the most interesting projects completed by Paterson & Cooke Consulting Engineers (PCCE) last year was the commissioning of the high density kimberlite tailings pumping system at Orapa diamond mine in Botswana.
In Mali, PCCE has performed a preliminary slurry pipeline design for Anglo's Sadiola Hill gold mine as part of a study of transporting ore the 22 km from the Yatela orebody to the existing metallurgical plant.
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The study involved the use of focus group interviews with more than 100 students to construct the Preferred College Classroom Environment Scale (PCCES