Chirano Gold Project
Client
Chirano Gold Mines Limited (a Kinross Company)Location
Western Region, GhanaHighlights
- 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