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Elements and Performance Criteria

1. Plan and prepare for continuous flight auger drilling
   • Access, interpret and apply continuous flight auger drilling documentation, and ensure the work activity is compliant
   • Obtain, read, interpret, clarify and confirm work requirements
   • Identify and address potential risks, hazards and environmental issues and implement control measures
   • Select and wear personal protective equipment appropriate for work activities
   • Communicate and coordinate activities with others throughout the work activity
   • Obtain and interpret emergency procedures, and be prepared for fire/accident/emergency
2. Operate continuous flight auger drill
   • Carry out pre-start and start up procedures
   • Identify, select and apply rig operational controls
   • Collar borehole, start hole, maintain hole alignment, take corrective action for deflections
   • Make up appropriate drill string
   • Handle additional augers, inserting them in the drill string
   • Apply rotation, feed and holdback so that flights are substantially full for the soil being drilled at any given depth
   • Interpret flow from the flights and other factors to determine conditions at the bit
   • Describe and log, or record, description of the soils being excavated
   • Make, break auger string and drive head connections
   • Maintain a clear hole and a clear bottom and deploy tools for cleaning hole bottom at completed depth and/or prior to sampling tool deployment
   • Interpret and/or calculate actual depth at any point during drilling, interpret depth of strata changes and identify fill depth in any bore
   • Select appropriate strategies for recovery of dropped augers
   • Recover drill string using winch and/or head/kelly and disassemble drill string
   • Select bits for formation being drilled
   • Select appropriate augering method for situation
   • Maintain spoil removal from hole collar
   • Abandon, cover and/or secure bores
   • Prepare and submit paperwork for daily activities including bore logs where appropriate
   • Continually monitor hazards and risks, and ensure safety of self, other personnel, plant and equipment
3. Respond to problems
   • Identify possible operational problems in equipment or process
   • Identify symptoms of problems needing remedial action
   • Determine possible fault causes
   • Rectify problem using appropriate solution within area of responsibility
   • Follow through items initiated until final resolution has occurred
   • Report problems outside area of responsibility to designated person
4. Complete equipment maintenance and housekeeping
   • Carry out shutdown and secure equipment
   • Monitor external wear in drill string, rotate string elements to ensure even wear
   • Interchange drill bits and/or drill bit elements to maintain free cutting ability
   • Check all string and equipment elements for wear and proper function
   • Replace worn elements in string, bits and equipment and recycle ‘out of specification’ equipment for repair or redundancy
   • Apply lubrication as appropriate
   • Ensure housekeeping activities are completed
   • Process records

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 continuous flight auger drilling including:

identifying and reporting all potential hazards, risks and environmental issues

interpreting geological maps, bore logs, diagrams, plans and instructions used for recording and prediction

works effectively with others to undertake and complete the continuous flight auger drilling tasks that meets all of the required outcomes including:

complying with written and verbal reporting requirements and procedures

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

communicating clearly and concisely with others to resolve coordination requirements prior to commencing and during work activities

demonstrates completion of the conduction of continuous flight auger drilling that safely, effectively and efficiently meets all of the required outcomes on more than one (1) occasion including:

collaring borehole, starting hole, maintaining hole alignment, and taking corrective action for deflections

making up appropriate drill string

handling additional augers, inserting them in the drill string

applying rotation, feed and holdback so that flights are substantially full for the soil being drilled at any given depth

interpreting flow from the flights and other factors to determine conditions at the bit

selecting appropriate strategies for recovery of dropped augers

recovering drill string using winch and/or head/kelly and disassemble drill string

abandoning, covering/securing bores to ensure safety of others and crew

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Knowledge Evidence

The candidate must demonstrate knowledge in conducting continuous flight auger drilling through:

organisation and site requirements and procedures for:

work, health and safety

environmental issues

operating drill rig

housekeeping

equipment spares and characteristics

equipment technical capabilities, system limitations, gauge readings and their interpretation

operational maintenance procedures for rig and equipment including pre-start checks

basic geological formations likely to be encountered and their properties

preparation for fire/accident/emergency

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