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Excavation Safety
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What is an excavation?
Man made cut, trench in an earth surface formed by earth removal.
A trench is narrow underground excavation that is deeper than it is wide, and is no wider than 4.5m.
What are hazards in excavation?
- Collapse of Excavation wall
- Underground utilities
- Fall of removed soil
- Fall of tools or equipment
- Surface or ground water
- Nearby structures
- Fall of vehicle
- Improper access and egress
- Overhead lines
- Presence of toxic gases
- Adverse weather
What are control measures for excavation?
- Permit to work
- Excavation Certificate
- Area scanning
- Check soil and do sloping or shoring or benching accordingly
- Barricade and safety signs (hard barricade 1.2 m)
- Keep 1 m edge clear
- Underground utilities (Cable Detector, plan or drawing of underground or trail pit)
- Provide safe access and egress
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