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Various excavation conditions :
- rock excavation using Blasting techniques and HRB,
– soil excavations in unstable areas,
– excavations in confined spaces,
– under immersion conditions,
– tunnel excavations,
– excavations in urban areas,
– mountain and steep slope excavations.
Techniques used :
- HRB,
– blasting, with or without pre-cutting,
– open-air blasting or tunnel blasting,
– trench blasting,
– excavator and dump trucks,
– retaining sructures as work progresses,
– prior injection,
– prior nailing,
– excavation using a spider excavator.
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Rock-breaking with HRB
Excavator and dump trucks – rehabilitation of a mining site
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