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Elements and Performance Criteria

1. Plan and prepare for large diameter auger drilling
   • Access, interpret and apply conduct large diameter auger drilling apply documentation, and 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 large diameter 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 drill stems, inserting them in the drill string
   • Use appropriate gears, rotation, feed and holdback so that flights or bucket are substantially full for the soil being drilled at any given depth
   • Interpret drilling factors to determine conditions at the bit
   • Make and 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
   • Interpret 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
   • Insert surface casing and deepen hole using smaller diameter auger or bucket, if required
   • Disassemble drill string and change augers and bit components
   • Select bits for formation being drilled
   • Select appropriate augering method for situation
   • Maintain spoil removal from hole collar
   • Cover and secure bores
   • Prepare and submit paperwork for daily activities
   • Continually monitor hazards and risks , and ensure safety of self, other personnel, plant and equipment
   • Select and use water and drilling fluids as appropriate
   • Bell foundation piles, if required
   • Clean pile bases and insert reinforcement cages, if required
   • Deploy bucket augers through surface casing and when drilling under bentonite muds
   • Use spin off and side casting of spoil as appropriate
   • Record daily hole depths and progress
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