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Evidence Guide: AHCLSC202A - Construct low-profile timber or modular retaining walls

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

AHCLSC202A - Construct low-profile timber or modular retaining walls

What evidence can you provide to prove your understanding of each of the following citeria?

Plan and prepare work

  1. Personal Protective Equipment (PPE) and clothing is selected, used and maintained.
  2. Work instructions relating to constructing the retaining wall are interpreted and confirmed with the supervisor.
  3. Tools and equipment are prepared and used according to the supervisor's instructions.
  4. Manual handling and other Occupational Health and Safety (OHS) hazards are identified, risks assessed and reported to the supervisor.
  5. Services are located according to site and construction
  6. The quantity and quality of materials are checked to ensure they conform to the requirements of the job plans.
Personal Protective Equipment (PPE) and clothing is selected, used and maintained.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work instructions relating to constructing the retaining wall are interpreted and confirmed with the supervisor.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Tools and equipment are prepared and used according to the supervisor's instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Manual handling and other Occupational Health and Safety (OHS) hazards are identified, risks assessed and reported to the supervisor.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Services are located according to site and construction

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The quantity and quality of materials are checked to ensure they conform to the requirements of the job plans.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Mark out site for retaining wall

  1. The position of the retaining wall is marked out according to site and construction plans.
  2. The location and depth of excavations are determined from site and construction plans.
  3. Profiles are established to conform to the tolerances designated by the supervisor and/or site and construction plans.
  4. Survey benchmarks are established.
The position of the retaining wall is marked out according to site and construction plans.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

The location and depth of excavations are determined from site and construction plans.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Profiles are established to conform to the tolerances designated by the supervisor and/or site and construction plans.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Survey benchmarks are established.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare footings according to industry standards

  1. Foundations for the retaining wall are excavated to depth and dimensions according industry standards.
  2. Soil and waste material are removed and stockpiled to ensure a safe working area.
  3. Reinforcing and/or steps in the excavated site are located and positioned according to industry standards.
  4. Pegs or levels are positioned to maintain even depth and horizontal plane to the top of footings.
  5. Footings are placed, consolidated and finished to determined levels, to ensure coverage of reinforcement as necessary and according to industry standards.
Foundations for the retaining wall are excavated to depth and dimensions according industry standards.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Soil and waste material are removed and stockpiled to ensure a safe working area.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Reinforcing and/or steps in the excavated site are located and positioned according to industry standards.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pegs or levels are positioned to maintain even depth and horizontal plane to the top of footings.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Footings are placed, consolidated and finished to determined levels, to ensure coverage of reinforcement as necessary and according to industry standards.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare and install retaining wall components

  1. Components for installation are prepared and laid out.
  2. Components to be cut are marked out to length and/or shape and cut accurately to the requirements of profiles already established.
  3. Drainage media is installed according to supervisor's instructions.
  4. Base layer of retaining wall is constructed to a point above the top of the drainage media and weep holes are formed where indicated.
  5. Fill material is back-filled and compacted behind base of retaining wall.
  6. Retaining wall components are constructed to dimensions, profiles and levels as outlined in the specified site and construction plans and/or according to supervisor's instructions.
  7. Capping to top of retaining wall is set to specified levels with a tolerance appropriate to the style of capping.
Components for installation are prepared and laid out.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Components to be cut are marked out to length and/or shape and cut accurately to the requirements of profiles already established.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Drainage media is installed according to supervisor's instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Base layer of retaining wall is constructed to a point above the top of the drainage media and weep holes are formed where indicated.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fill material is back-filled and compacted behind base of retaining wall.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Retaining wall components are constructed to dimensions, profiles and levels as outlined in the specified site and construction plans and/or according to supervisor's instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Capping to top of retaining wall is set to specified levels with a tolerance appropriate to the style of capping.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean up site and store tools and equipment

  1. Soil and waste material from the site is disposed of or recycled to minimise damage to the environment.
  2. Unused construction materials are stored and stacked for future re-use according to supervisors instructions.
  3. All tools and equipment are cleaned and stored according to supervisors instructions.
Soil and waste material from the site is disposed of or recycled to minimise damage to the environment.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Unused construction materials are stored and stacked for future re-use according to supervisors instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

All tools and equipment are cleaned and stored according to supervisors instructions.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy holistically all of the requirements of the performance criteria and required skills and knowledge and include achievement of the following:

plan and prepare for construction

mark out the site and assemble materials

construct footings and place reinforcing

carry out wall construction

clear up the site and dispose of waste.

Context of and specific resources for assessment

Competency requires the application of work practices under work conditions. Selection and use of resources for some worksites may differ due to the regional or enterprise circumstances.

Required Skills and Knowledge

Required skills

read and interpret site and construction plans

calculate the amount of materials required and accurately mark out the area to be retained

sort soil and waste material from the excavation site in an environmentally aware and sensitive manner, such as sorting it into organic, inorganic and recyclable piles

use literacy skills to follow sequenced written instructions and record information accurately and legibly

use oral communication skills/language competence to fulfil the job role as specified by the organisation including questioning, active listening, asking for clarification and seeking advice from supervisor

use numeracy skills to estimate, calculate and record routine workplace measures

use interpersonal skills to relate to people from a range of social, cultural and ethnic backgrounds and with a range of physical and mental abilities.

Required knowledge

different construction materials for retaining walls

construction approaches and methods

OHS responsibilities of employees

safe lifting practices for carrying large and heavy components

the environmental impact of soil disturbance when excavating an area to be retained and the environmental effects of altering water flow when installing retaining walls, with or without drainage media

methods of disposing of soil and waste materials in order to minimise damage to the environment

Building Code of Australia relating to constructing retaining walls.

Range Statement

The range statement relates to the unit of competency as a whole.

Retaining walls may include:

all types of low [<900mm] retaining walls using timber and modular concrete units.