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Chirano Gold Project

Chirano Gold Project

Client
Chirano Gold Mines Limited (a Kinross Company)

Location
Western Region, Ghana

Highlights
  • Embankment design
  • Storage capacity modeling
  • Slope stability analysis
  • Stormwater and spillway design
  • Drainage design
  • Liner design
  • Seepage analysis and interception design
  • Water balance
  • Drafting of drawings
Project Overview

Chirano Gold Mines Limited (CGML) commissioned Knight Piésold to carry out the detailed design of a Stage 7 Raise to the existing Tailings Storage Facility 1 (TSF 1) at the Chirano Gold Mine. The raise is to crest elevation 2312.0 m RL, which is a 7 m raise from the current crest elevation of 2305 m RL. The Stage 7 Raise storage capacity is estimated to be approximately 7.07 Mt, which is approximately two years of storage at 3.5 Mtpa.

Project Role

Services provided by Knight Piésold included:

  • Selection of potential burrow materials and analysis of test results on samples for quantites and construction suitability
  • Staged embankment designs
  • Tailings storage capacity modeling
  • Storm water and spillway analysis
  • Underdrainage and groundwater drainage system designs
  • Design of HDPE liners and geotextile separators
  • Seepage analysis
  • Design of seepage interception system
  • Drafting of design drawings
  • Development of bill of quantities and engineer’s cost estimates
  • Water balance
  • Project risk assessment
  • Decant system design