Elements and Performance Criteria
- Plan and prepare work
- Read work instructions relating to constructing the retaining wall and confirm instructions with the supervisor
- Prepare tools and equipment and use according to the supervisor's instructions
- Identify and report to supervisor any manual handling and other work health and safety hazards
- Select, use and maintain personal protective equipment (PPE) and clothing
- Check the quantity and quality of materials to make sure they conform to the requirements of the job plans
- Locate and mark out services
- Mark out site for retaining wall
- Prepare footings according to industry standards
- Excavate foundations for the retaining wall to the required depth and dimensions as designated on the site plans
- Remove soil and waste material and stockpile to ensure a safe working area
- Locate reinforcing or steps in the excavated site and position accordingly
- Position pegs to maintain levels of even depth and horizontal plane to the top of footings
- Place, consolidate and finish footings to determined levels, to ensure coverage of reinforcement as necessary
- Prepare and install retaining wall components
- Prepare and lay out components for installation
- Mark components to be cut to length and shape, and cut to the requirements of profiles already established
- Install drainage media
- Construct base layer of retaining wall to a point above the top of the drainage media and form weep holes where indicated
- Back-fill and compact fill material behind base of retaining wall
- Construct retaining wall components to required dimensions, profiles and levels as specified on the site plans
- Set capping to top of retaining wall to specified levels with a tolerance appropriate to the style of capping
- Clean up site and store tools and equipment