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Elements and Performance Criteria

  1. Plan and prepare
  2. Prepare tunnel face for concrete/shotcrete
  3. Line/shotcrete tunnel face
  4. Clean up

Required Skills

Required skills

Specific skills are required to achieve the Performance Criteria of this unit particularly for its application in the various circumstances in which this unit may be used This includes the ability to carry out the following as required to line tunnels

apply legislative organisation and site requirements and procedures for lining tunnels

interpret engineering drawings

organise work activities

select and use relevant tools and equipment safely

identify and report on hazards related to the worksite and work activity

communicate effectively to receive and clarify work instructions

report defects

Required knowledge

Specific knowledge is required to achieve the Performance Criteria of this unit particularly for its application in the various circumstances in which this unit may be used This includes knowledge of the following as required to line tunnels

site and equipment safety requirements

tunnel construction

tunnel lining

construction principles

materials used in tunnel lining

scaffolding and work platform installation

equipment types characteristics technical capabilities and limitations

operational maintenance and basic diagnostic procedures

site isolation and traffic control responsibilities and authorities

materials safety data sheets and materials handling methods

project quality requirements

civil construction terminology

JSAssafe work method statement

Evidence Required

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 worksite operations and satisfy all of the requirements of the performance criteria required skills and knowledge and the range statement of this unit and include evidence of the following

knowledge of the requirements procedures and instructions for lining tunnels

implementation of requirements procedures and techniques for the safe effective and efficient completion of tunnel lining

working with others to undertake and complete the lining of tunnels that meets all of the required outcomes

consistent timely completion of tunnel lining that safely effectively and efficiently meets the required outcomes

completion of drilling and installation of rock bolts application of reinforcing mesh and shotcretingconcreting of a minimum of a five lineal metre section of tunnel

Context of and specific resources for assessment

This unit must be assessed in the context of the work environment Where personal safety or environmental damage are limiting factors assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance including task skills task management skills contingency management skills and job role environment skills

Assessment of this competency requires typical resources normally used in a resources and infrastructure sector environment Selection and use of resources for particular worksites may differ due to the site circumstances

The assessment environment should not disadvantage the participant For example language literacy and numeracy demands of assessment should not be greater than those required on the job

Customisation of assessment and delivery environment to sensitively accommodate cultural diversity

Aboriginal people and other people from a non English speaking background may have second language issues

Where applicable physical resources should include equipment modified for people with disabilities Access must be provided to appropriate learning andor assessment support when required

Method of assessment

This unit may be assessed in a holistic way with other units of competency The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods

written andor oral assessment of the candidates required knowledge

observed documented andor first hand testimonial evidence of the candidates

implementation of appropriate requirement procedures and techniques for the safe effective and efficient achievement of required outcomes

consistent achievement of required outcomes

first hand testimonial evidence of the candidates

working with others to undertake and complete the lining of tunnels

Guidance information for assessment

Consult the SkillsDMC User Guide for further information on assessment including access and equity issues


Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Relevant compliance documentation may include:

legislative, organisational and site requirements and procedures

manufacturer's guidelines and specifications

Australian standards

Employment and workplace relations legislation

Equal Employment Opportunity and Disability Discrimination legislation

Safety requirements may include:

OHS requirements in accordance with state or territory legislation and regulations, organisational safety policies and procedures, and project safety plan, including protective clothing and equipment, use of tools and equipment, workplace environment and safety, handling of materials, use of fire fighting equipment, use of First Aid equipment, hazard control and hazardous materials and substances

safe parking practices including ensuring access ways are clear, equipment/machinery is away from overhangs and refuelling sites, safe distance are kept from excavations, and areas secured from unauthorised access or movement

safe operating procedures including recognising and preventing hazards associated with uneven/unstable terrain, trees, pits, poles, trip hazards, dirt mounds, overhead service lines, bridges, surrounding buildings, obstructions, structures, facilities, dangerous materials, recently filled trenches, other machines, personnel, traffic control, working in proximity to others, worksite visitors and the public

recognising hazards and risks including uneven/unstable terrain, trees, fires, overhead and underground services, bridges, buildings, excavations, traffic, embankments, cuttings, structures and hazardous materials

emergency procedures related to equipment operation including emergency shutdown and stopping, extinguishing equipment fires, organisational First Aid requirements and evacuation

Signage may include:

escort vehicle

highway traffic signs

site safety signage

temporary signage for the benefit of motorists and pedestrians

traffic conditions signage

Traffic conditions may include:

congested urban environments

low traffic rural areas

off-road un-trafficked areas

buildings

parking sites

pedestrian areas

Tools and equipment may include:

shotcreting machines

drill rigs

spanners and shotcrete pumps

concrete pumps

slick lines

formwork

Environmental protection requirements may include:

organisational/project environmental management plan

waste management

water quality protection

noise

vibration

dust and clean-up management

Lining may include:

shotcreting

rock bolting

reinforced mesh

formwork

pre-cast concrete lining

concrete lining

applied shotcrete finishes

poured reinforced concrete

installation of pre-cast section

Concrete application may include the use of:

concrete lining machine

slip or telescopic formwork

strip and re-assemble formwork

fold and re-assemble formwork

Materials may include:

dowels

rock bolts

drainage materials (strip drains, PVC pipe)

reinforced mesh