1. Excavation

2. What is Excavation Work
Excavation work generally means
work involving the removal of soil or rock from a site to form an open face, hole or cavity using tools, machinery or explosives.

3. High Risk Construction Work
Regulation 291 – Part (g) Defines High Risk Construction Work
This means any work Including excavation
Refer page 46 of your notes

4. High Risk Construction Work

5. Who has Duties in relation to Excavation
A person conducting a business or undertaking
A person conducting a business or undertaking who has management or control of a workplace

6. Identify the Hazards
Eliminate or Control the Risk
Maintain the Controls
Review and Maintain where necessary

7. Typical Specific Hazards
Underground Services

8. Possible Control

9. Typical Specific Hazards
Fall or Dislodgement of Earth or Rock

10. Possible Control
Exclusion Zones for Excavations

11. Ground Collapse

12. Possible Controls

13. Possible Controls
Where the excavation is greater than 1.5m it must be shored.
Under 1.5m a competent person must asses the risk

14. Typical Specific Risks
underground essential services
the fall or dislodgement of earth or rock
falls from one level to another
falling objects
inappropriate placement of excavated materials, plant or other loads

15. Possible Controls

16. Possible Controls

17. Possible Controls

18. Possible Controls

19. Possible Controls

20. Possible Controls

21. Possible Controls

22. Falls

23. Possible Control

24. Possible Control

25. Earthmoving Equipment
Collapse of Trench

26. Possible Controls

27. Hazard - Blind Spots

28. Possible Controls