Safety in Excavation IS 3764 : 1992 EXCAVATION Excavation Excavation. Any man made cut, cavity or depression in the earths surface formed by earth.
PSFA Trench Rescue. Relevant Reference Material OSHA 29 CFR1926.650: Scope, Application and Definitions OSHA 29 CFR1926.651: Specific Excavation Requirements.
Geotechnical Engineering
