Frozen Dams in Permafrost Regions - Mine Water Solutions

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North Dam – Core Material• Winter construction with saturated crush rock material• Placed near saturated• Thin lifts• Allowed to freeze (reach-2 o C) before next lift placementFrozen Core PlantFrozen Core Material PlacementCentral Core - Plan Layout
Lessons Learnt – Case Histories• Modern frozen core dams have advanced significantly since inception in late 18 th century• Value in winter construction with passive coolingo eg., Garrow Lake, Kubaka, West (Jericho) and Ekati Dams• Thermal modeling of frozen damso Guidance on active or passive freezing and insulation requirements• Ground freezing technology advancements• Common problems with early frozen dams:o Thermal erosion of spillways (eg., Irelyakh) or due to summer repairs (eg., Petrovsk)o Dams constructed thawed did not freeze as planned (eg.,Dolgoyle, Anadyr’)
Page 1 and 2: Frozen Dams inPermafrost RegionsMeg
Page 3 and 4: DefinitionFrozen Core Dam: A dam in
Page 5: Frozen Dams Throughout HistoryPrima
Page 8 and 9: Case Study: Petrovsk Dam, Russia•
Page 10 and 11: Case Study: Irelyakh River Dam, Rus
Page 12 and 13: Case Study: Anadyr’, RussiaConstr
Page 14 and 15: Case Study: Garrow Lake, Canada•
Page 16 and 17: North Dam - Design Components
Page 18 and 19: North Dam - Thermal AnalysisMid-Dec
Page 22 and 23: Lessons Learnt - North Dam Construc
Page 24: Questions?

Frozen Dams in Permafrost Regions - Mine Water Solutions

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