Google Links

Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Plan and prepare to line tunnel
   • Access, interpret and apply tunnel lining documentation and ensure the work activity is compliant
   • Obtain, interpret, clarify and confirm work instructions before proceeding
   • Identify, obtain and implement the traffic signage requirements
   • Select and wear personal protective equipment appropriate for work activities
   • Select and check for faults plant, tools and equipment to carry out tasks
   • Identify, address and report environmental issues, potential hazards and risks
   • Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
2. Prepare tunnel face for concrete/shotcrete
   • Install rock anchors and/or bolts to designed locations
   • Prepare reinforcing mesh in accordance with tunnel shape and designed lining, where specified
   • Locate and secure reinforcing mesh in place
   • Fix dowels to wall face to provide depth gauge to thickness of concrete/shotcrete
   • Install drainage to the tunnel roof and walls where specified
3. Line/shotcrete tunnel face
   • Set up pump, pipelines and spray equipment and check for serviceability and operation
   • Prepare and control shotcrete mix
   • Operate pump
   • Prepare formwork and set to specifications
   • Provide support to shotcreter in monitoring supply and assist with elevated platform and allied equipment
   • Apply shotcrete consistently
4. Clean up
   • Clear work area and dispose of or recycle materials
   • Clean, check, maintain and store plant, tools and equipment
   • Carry out housekeeping activities
5. Plan and prepare to line tunnel
   • Access, interpret and apply tunnel lining documentation and ensure the work activity is compliant
   • Obtain, interpret, clarify and confirm work instructions before proceeding
   • Identify, obtain and implement the traffic signage requirements
   • Select and wear personal protective equipment appropriate for work activities
   • Select and check for faults plant, tools and equipment to carry out tasks
   • Identify, address and report environmental issues, potential hazards and risks
   • Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
6. Prepare tunnel face for concrete/shotcrete
   • Install rock anchors and/or bolts to designed locations
   • Prepare reinforcing mesh in accordance with tunnel shape and designed lining, where specified
   • Locate and secure reinforcing mesh in place
   • Fix dowels to wall face to provide depth gauge to thickness of concrete/shotcrete
   • Install drainage to the tunnel roof and walls where specified
7. Line/shotcrete tunnel face
   • Set up pump, pipelines and spray equipment and check for serviceability and operation
   • Prepare and control shotcrete mix
   • Operate pump
   • Prepare formwork and set to specifications
   • Provide support to shotcreter in monitoring supply and assist with elevated platform and allied equipment
   • Apply shotcrete consistently
   • Clear work area and dispose of or recycle materials
   • Clean, check, maintain and store plant, tools and equipment
   • Carry out housekeeping activities

Performance Evidence

Evidence is required to be collected that demonstrates a candidate’s competency in this unit. Evidence must be relevant to the roles within this sector’s work operations and satisfy all of the requirements of the performance criteria of this unit and include evidence that the candidate:

locates and applies relevant documentation, policies and procedures

implements the requirements, procedures and techniques for the safe, effective and efficient completion of lining tunnels including:

applying equipment/manual handling techniques

selecting and using relevant tools and equipment

identifying, reporting and recording hazards and risks

interpreting engineering drawings

identifying and reporting defects

works effectively with others to undertake and complete the lining of tunnels that meets all of the required outcomes including:

organising work activities to meet all task requirements

communicating clearly and concisely with others to receive and clarify work instructions

using a range of communication techniques and systems such as signage to advise others of work activity and exclusion zone

demonstrates completion of line tunnelling that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:

completion of drilling and installation of rock bolts, application of reinforcing mesh and shotcreting/concreting of a minimum of a five (5) lineal metre section of tunnel

---

Knowledge Evidence

The candidate must demonstrate knowledge in lining of tunnels through:

identifying materials used in tunnel lining

applying construction principles

identifying equipment types, characteristics, technical capabilities and limitations

complying with project quality requirements

identifying and using civil construction terminology

complying with site isolation and traffic control responsibilities and authorities

complying with safety data sheets and materials handling methods

being prepared for fire/accident/emergency

---