Elements and Performance Criteria
- Plan and prepare for guided boring
- Access, interpret and apply compliance documentation relevant to the work activity
- Obtain, confirm and apply work instructions for the allocated task
- Identify, manage and report all potential hazards
- Identify, locate and apply personal protective equipment
- Raise alarm/report as required according to site procedures
- Resolve coordination requirements with others at the site prior to commencing and during work activities
- Bore pilot hole
- Confirm that all preliminary and safety checks have been done
- Fit locating device to drill head and attach drill head to drill stem
- Align drilling head with survey tool and survey control system
- Drill pilot hole according to design alignment
- Monitor drill path ensuring pilot hole meets conformance envelope and dogleg severity is within limits
- Add drill stem sections as required
- Steer, and where required, zone steer drill head to achieve required pitch and direction
- Monitor and interpret all gauge/dial readings
- Monitor and interpret drill fluid return and drill spoil
- Monitor and interpret drill head position and pitch
- Maintain communication with all relevant personnel
- Maintain drill log and reports as required
- Complete back reaming, and product pull back
- Lock out machine
- Remove drill head
- Check free rotation of swivel
- Connect appropriate back reamer, swivel and product
- Locate product feed to prevent damage and within breakover limitations
- Check all safety precautions are in place and restart machine
- Back reaming/pre-ream, and install product, removing drill stem sections to procedure as required
- Monitor and interpret all gauge/dial readings
- Monitor and interpret drill fluid flow from both ends of hole
- Monitor product feed
- Maintain communication with all relevant personnel
- Take required actions to achieve satisfactory product installation as required
- Maintain drill log and reports as required
- Maintain equipment
- Monitor wear on drill stem, particularly threads
- Dress damaged threads or replace drill stem as required
- Check all equipment and hoses
- Monitor wear on drill heads and reamers and take required action
- Clean all equipment upon completion of bore, ensuring environmental controls are followed
- Rotate drill stems in stack
- Ensure drill fluid is appropriately contained/disposed of
- Ensure other maintenance tasks are completed regularly
- Keep site safe for all possible users for the total duration of the job
- Leave site in a safe and tidy condition which complies with all relevant regulations
- Respond to problems
- Identify possible problems in equipment or process
- Determine problems needing 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