1. Construction Mr. O’Rourke
Earthwork
Construction
Mr. O’Rourke

2. What is Earthwork?
Earthwork is the modifying of earth in order to make it suitable for construction.

3. Seven forms of Earthwork:
Stabilizing
Loosening
Excavating
Adding
Moving
Disposing
Finishing

4. Stabilizing Earth Stabilizing prevents cave-ins Sloping
Retaining walls
Coffer dams

5. Loosening Soil
Hard Earth must be loosened
Blasting
Air Hammering

6. Excavating Removing Earth Digging a foundation Dredging
Boring a tunnel

7. Adding Earth
Raising the grade
Better the soil

8. Moving Earth
Transferring soil
Conveyors
Earthmovers
Trucks

9. Disposing of Earth
Earth is:
Used
Dumped
Sold

10. Finishing Earthwork Washing-rocks Trimming-holes Compacting-removing
air
Grading-leveling

11. Earth’s Ingredients: Rock Soil Mixture
Must be modified before building upon