Tailings Dams Preliminary Design Report, NWT Diamonds Project (EBA Engineering, December 1995)
EBA Engineering Consultants prepared preliminary designs for tailings dams and associated earthworks at the NWT Diamonds Project located 300 km northeast of Yellowknife, featuring four perimeter dams around Long Lake using frozen core technology to retain water and tailings, with extensive thermal and stability analyses to ensure permafrost integrity over a 25-year operational period.
- Date
- Document type
- Report
- Parties
- BHP Diamonds Inc., EBA Engineering Consultants Ltd., Rescan Environmental Services Ltd., Fluor Daniel Wright-Signet
- Locations
- NWT Diamonds Project, Yellowknife, Northwest Territories, Lac De Gras, Koala Lake, Misery Lake, Long Lake, Kodiak Lake, Leslie Lake, Panda Lake, Contwoyto Lake, Fort Reliance, Police Bay, Lupin Mine, Polaris Mine, Little Cornwallis Island, Baker Lake, Saqvaqjuac
- Parameters
- tailings retention, water storage, frozen core dams, permafrost, thermal analysis, foundation freezing, ground temperature, lake temperature, seepage, embankment stability, settlement, thermosyphons, subsurface geology, lacustrine sediments, till, bedrock, ice content, snow cover, air temperature, water level projections
- Pages
- 128
Original document
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