What are the basic excavation principles for an operator?

Basic excavation principles are essential for any heavy equipment operator:

Excavation types:

• Bulk excavation: For large areas (building foundations, basements). Use an appropriately sized excavator. Volume is calculated in cubic meters (m³) — measure length × width × depth
• Trench excavation: For utilities (water main, sewer, electricity). Width depends on depth and soil type. Walls must be sloped or shored depending on depth
• Selective excavation: For repairs or existing foundations — precision required to avoid damaging structures

Volume calculations:

• Bank volume (bank m³) = volume in the ground before excavation
• Loose volume (loose m³) = volume after excavation — increases by 20-40% depending on soil type
• Compacted volume = volume after compaction — generally 10-20% larger than bank volume

Frost depth: In Quebec, frost depth can reach 1.8 meters depending on the region. Foundations must extend below the frost line to prevent heaving.