Release Number

TP Version

Comments

1

AHCv1.0

Initial release

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Plan and prepare work

1.1 Read work instructions relating to constructing the retaining wall and confirm instructions with the supervisor

1.2 Prepare tools and equipment and use according to the supervisor's instructions

1.3 Identify and report to supervisor any manual handling and other work health and safety hazards

1.4 Select, use and maintain personal protective equipment (PPE) and clothing

1.5 Check the quantity and quality of materials to make sure they conform to the requirements of the job plans

1.6 Locate and mark out services

2. Mark out site for retaining wall

2.1 Mark out the position of the retaining wall according to site plans

2.2 Determine the location and depth of excavations

2.3 Establish profiles to conform to the designated tolerances

2.4 Establish survey benchmarks

3. Prepare footings according to industry standards

3.1 Excavate foundations for the retaining wall to the required depth and dimensions as designated on the site plans

3.2 Remove soil and waste material and stockpile to ensure a safe working area

3.3 Locate reinforcing or steps in the excavated site and position accordingly

3.4 Position pegs to maintain levels of even depth and horizontal plane to the top of footings

3.5 Place, consolidate and finish footings to determined levels, to ensure coverage of reinforcement as necessary

4. Prepare and install retaining wall components

4.1 Prepare and lay out components for installation

4.2 Mark components to be cut to length and shape, and cut to the requirements of profiles already established

4.3 Install drainage media

4.4 Construct base layer of retaining wall to a point above the top of the drainage media and form weep holes where indicated

4.5 Back-fill and compact fill material behind base of retaining wall

4.6 Construct retaining wall components to required dimensions, profiles and levels as specified on the site plans

4.7 Set capping to top of retaining wall to specified levels with a tolerance appropriate to the style of capping

5. Clean up site and store tools and equipment

5.1 Dispose of or recycle soil and waste material from the site to minimise damage to the environment

5.2 Store and stack unused construction materials for future re-use

5.3 Clean and store all tools and equipment

Release Number

TP Version

Comments

1

AHCv1.0

Initial release