Mine Dewatering

Project Value | $7m

Solution Provided | Definitive Feasibility Study

Discipline | Process, Mechanical, Electrical, Control, Estimating, Scheduling

As a predominantly above water table mine at the beginning of operations, the bore fields south of the client's mine site acted as the primary source of water. As the life of mine has developed, some of the original pits have progressively developed into below water table operations. In order to meet operational requirements, dewatering was to commence in 2016. Carnac was engaged to assess a dewatering proposal performed internally by the client. and identify further work to progress design. A gap analysis and further engineering performed, which resulted in a much simpler and lower cost solution. The key drivers were the implementation of dewatering by early 2016, the upgrade of existing infrastructure on site for increased water supply, and the modification to water discharge licensing.

Carnac also provided a facility functional description of the equipment being used as part of the client's dewatering system through analysis of historical data stored in the client's Citect server. Hydraulic and water hammer calculations were undertaken using Piping Systems Fluid Flow and Hytran software for various scenarios involving the route of the pipeline.