Scope of Work
GR Engineering was appointed by Dacian Gold Limited (DCN) to undertake the engineering, design (management of sub-consultant), procurement, construction and commissioning of the Tailings Storage Facility (TSF).
Services provided included:
- Classification and identification of construction materials at source;
- Management of design through appointment of tailings consultant;
- Management of construction and coordination of construction material supply and delivery through appointment of bulk earthworks subcontractor;
- Construction management and supervision for TSF Construction;
- Management of consultant during construction phase to provide testing services;
- QA/QC for Construction Phase;
- Reporting and licencing application support.
Project Statistics:
- Type of TSF: Paddock Impoundment
- Impoundment area: 44.7 ha
- Stage 1 (starter embankment) wall height: 9.5 m agl
- Stage 1 crest length: 1,650 m
- Tailings discharge method: Multiple Spigot
- Water recovery: Pumped decant tower
- Construction Materials: Mine waste rock, well graded sandy gravel filter/support, clayey sand/sandy clay, geomembrane (ES1 bitumen) liner
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