Application
This unit is appropriate for those working in a driller roles, in underground mines within:
Drilling
Metalliferous mining
Prerequisites
Not applicable.
Elements and Performance Criteria
ELEMENT | PERFORMANCE CRITERIA |
1. Plan and prepare for drilling | 1.1. Access, interpret and apply compliance documentation relevant to the work activity 1.2. Obtain, confirm and apply shift changeover details, geo-technical reports and drill plan for the allocated task 1.3. Inspect and assess site conditions to identify and manage possible scaling requirements, misfires and other hazards and potential risk 1.4. Resolve coordination requirements with others at the site prior to commencing and during work activities 1.5. Select and wear personal protective equipment appropriate for work activities |
2. Set up for drilling | 2.1. Set up the raise bore drill rig site 2.2. Locate the drill rig on the prepared pad and position and check alignment as specified according to drill plan 2.3. Secure drill rig to the pad using recommended equipment and anchors 2.4. Stand drill rig in specified position according to drilling plan 2.5. Connect components to drill rig 2.6. Test raise drill for correct, safe operation 2.7. Calculate rods needed to drill to depth, and set up drill rack 2.8. Load drill rods and equipment onto drill rack 2.9. Conduct equipment pre-start checks to ensure equipment is safe and ready to use |
3. Locate collar and drill pilot hole | 3.1. Inspect and assemble collaring starter equipment 3.2. Install dust suppression and extraction systems 3.3. Confirm and set drill direction accurately and collar hole as specified in the drill plan 3.4. Install assemblies in collared hole to allow pilot hole drilling to be carried |
4. Drill and monitor progress of pilot hole | 4.1. Inspect job-site for safe working conditions 4.2. Maintain safety of driller and surrounding personnel 4.3. Interpret drill plans and drill holes to design 4.4. Operate equipment safely within working environment limitations and ground conditions 4.5. Monitor ground conditions and adjust drilling techniques and components to maintain efficient drilling operations 4.6. Monitor drilling progress using appropriate equipment indicators 4.7. Carry out and monitor drill "break through" procedures and inspect break through 4.8. Remove housing assemblies |
5. Ream raise bore | 5.1. Coordinate personnel to attach the reaming head to drill string 5.2. Communicate with appropriate personnel to ensure safe removal of raise bore cuttings 5.3. Maintain safety of driller and surrounding personnel 5.4. Operate equipment safely within working environment limitations and ground conditions 5.5. Monitor ground conditions and adjust reaming techniques to maintain efficient drilling operations 5.6. Diagnose and take appropriate action to manage reaming problems and advise appropriate personnel 5.7. Remove and store reamer |
6. Pack-up drill site | 6.1. De-rig equipment 6.2. Confirm equipment is ready for transport |
7. Carry out operator maintenance | 7.1. Carry out shutdown procedures 7.2. Service and make minor adjustments to equipment 7.3. Visually inspect equipment and report faults and make equipment available for routine operational servicing |
8. Carry out housekeeping activities | 8.1. Clean equipment to maintain condition of equipment and ensure safe and efficient operations 8.2. Clear site of debris and excess stores 8.3. Clean and store auxiliary service equipment 8.4. Complete all required documentation clearly, concisely and on time 8.5. Pass on end of shift information to oncoming shift |
Required Skills
Required skills |
Specific skills are required to achieve the performance criteria in this unit, particularly for the application in the various circumstances in which this unit may be applied. This includes the ability to carry out the following as required to conduct raise boring: apply legislative, organisation and site requirements and procedures use clinometers read and interpret plans use hand and power tools set up and load rod rack set up and align a raise bore in readiness for drilling attach and remove drill rods, bits and reamers pack up raise drill in readiness for transport |
Required knowledge |
Specific knowledge is required to achieve the Performance Criteria of this unit, particularly its application in a variety of circumstances in which the unit may be used. This includes knowledge of the following, as required to conduct raise boring: auxiliary services procedures cleaning procedures down hole problems drilling procedures calculating and setting drill angles environmental procedures drilling equipment processes, technical capability and limitations equipment safety requirements geological and technical data inspection procedures isolation procedures manufacturer's specifications mining regulations operational procedures and checks recovery procedures site safety requirements start-up and shutdown procedures storage procedures towing procedures underground procedures dealing with misfires |
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 conducting raise boring implementation of requirements, procedures and techniques for the safe, effective and efficient conducting of raise boring working with others to undertake and complete raise boring that meets all of the required outcomes consistent timely completion of raise boring that safely, effectively and efficiently meets the required outcomes |
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. 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. Assessment of this competency requires typical resources normally used in the work environment. Selection and use of resources for particular worksites may differ due to site circumstances. Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and/or 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 and/or oral assessment of the candidate's required knowledge observed, documented and/or first hand testimonial evidence of the candidate's: implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes consistently achieving the required outcomes first hand testimonial evidence of the candidate's: working with others to undertake and complete the raise boring |
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 code of practice Employment and workplace relations legislation Equal Employment Opportunity and Disability Discrimination legislation |
Drill plan may include: | access to inclines and decline drive plan equipment and resource allocations/requirements face geological details verbal or written instructions worksite details services stope drilling angles breakthrough |
Hazards and potential risks may include: | ground control failure scaling requirements lack of ventilation vertical openings limited egress loose material on working surface misfires gases entry by unauthorised personnel unstable ground conditions airborne dust and fibres unstable footing poor housekeeping noise rotating machinery (drill rods) electrical hazards airborne rock fragments |
Coordination requirements may include: | rig operator observers site communicator LHD unit operator |
Personal Protective Equipment may include: | eye protection hearing protection gloves helmet boots |
Setting up rig may involve: | locating minor components packing components with sandbags to ensure level and stability |
Drill rigs may be: | electric hydraulic pneumatic rotary track |
Locating drill rig may involve: | towing or manoeuvring the derrick sled on the pad conducting final position adjustments aligning sled rails ensuring rails and pad are free of contaminants |
Securing drill may include: | collecting equipment for securing the rig drilling hole through sled cleaning out drill holes inserting resin cartridges to secure bolts tightening nuts on rock bolts |
Standing drill rig may include: | cleaning and greasing parts checking turnbuckles connecting to power supplies standing and checking that rig is at appropriate angle inserting back pins |
Connecting components may include: | hanging out cable hangers checking, cleaning and connecting hydraulic checking, cleaning and connecting air and water supplies running out air and water lines to derrick installing and testing pumps connecting power and testing motor rotation |
Testing raise drill may include: | rig rotation rig crosshead movement rig slow and fast up and down pipe loader grip close and open pipe loader swing and tilt emergency stops indicator lights components move freely correct pressures are attained computer readings |
Equipment may include: | collar piping covering devices (plugs, cones, hessian bags) drill rig (electric/hydraulic, pneumatic) drilling components (drill rods, bits,) extra lighting (flood lights) flags hoses inclinometer lifting and handling equipment measuring tape oils paint (spray cans) plates recovery equipment scaling bars signs support vehicles tamping stick/tapes witches hats recommended/required PPE |
Equipment pre-start checks may include: | air filter restriction indicator cab (horn, lights, air conditioner) computer systems display instrumentation and gauges (indicators, gauges, laser levels) fire and suppression systems fire extinguishers fluid levels (hydraulic oil, coolant, grease, water, engine oil, fuel) visual and audio warning devices and lights drilling equipment (hydraulic hoses, bits and couplings) drill rig platform, steps and hand rails |
Inspecting collaring may include: | ensuring that collaring bush wear is in recommended limits ensuring that all components/parts are free from burrs and damage ensuring that drill bit is free with no excessive play |
Dust suppression and extraction methods may include: | mobile/fixed sprays screens (vent doors, vent blinds) use of water trucks ventilation bags operational watering down site Blooie housing |
Job-site inspections may include: | ventilation air and water services scaling requirements pumps signs and barricades post firing rock falls site housekeeping |
Personnel may include: | blasters contractors drillers drivers holders of appropriate tickets inspectors licensed operators maintenance staff personnel authorised by mine management service personnel supervisors surveyors tradespersons |
Ground conditions may include: | broken ground dryness location of water table noise slope of working surface stability of ground stable ground (compaction) amount of scale ventilation characteristics (fumes, dust) visibility/wet breakthrough |
Drilling/reaming techniques may include: | adjustment to feed removing debris rotation speed and pull force adjustments |
Equipment indicators may include: | pressure gauges control panel readings rotation depth markers |
Equipment cleaned may include: | platform steps and hand rails (removal of oil, grease, debris) drill rods |
Auxiliary services may include: | compressed air de-watering pumps electricity ventilation water |
Drilling/reaming problems may be: | environmental geological (ground conditions) mechanical (bogged) |
Sectors
Drilling (General)
Competency Field
Refer to Unit Sector(s).
Co-Requisites
Not applicable.
Employability Skills
This unit contains employability skills.
Licensing Information
Refer to Unit Descriptor.