Open Pit Mining (Leaving Cert Engineering): Flashcards
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Practise the cards
13 cards from this deck
What is open pit mining?
What is open pit mining?
Surface extraction method for metal ores
Where are ores for open pit mining located?
Where are ores for open pit mining located?
Near surface but extends deep underground
How deep can open pit mines reach?
How deep can open pit mines reach?
Hundreds of metres
What tools are used in open pit mining?
What tools are used in open pit mining?
Heavy plant machinery and explosives
What are stepped levels in open pits called?
What are stepped levels in open pits called?
Benches
Why is terraced design used in open pits?
Why is terraced design used in open pits?
Stable platforms, access roads, prevents rock falls
What do dump trucks do in mining?
What do dump trucks do in mining?
Transport extracted materials along access roads
What do excavators do in mining?
What do excavators do in mining?
Remove overburden and extract ore
What do bulldozers do in mining?
What do bulldozers do in mining?
Level surfaces and maintain roads
What does drilling equipment do?
What does drilling equipment do?
Creates holes for explosive placement
Environmental impacts of open pit mining?
Environmental impacts of open pit mining?
Landscape changes, habitat loss, air/water quality issues
What is reclamation in mining?
What is reclamation in mining?
Processes to restore mined areas after extraction
First step in mining operations?
First step in mining operations?
Survey teams identify ore location and depth