ELEMENT

PERFORMANCE CRITERIA

1. Plan and prepare for the installing underground in-seam directional drilling standpipe

1.1. Access, interpret and apply compliance documentation relevant to the work activity

1.2. Obtain, confirm and apply work instructions for the allocated task

1.3. Identify, manage and report all potential hazards

1.4. Resolve coordination requirements with others at the site prior to commencing and during work activities

2. Perform rib consolidation

2.1. Prepare for rib consolidation drilling in accordance with the drill plan

2.2. Carry out rib consolidation drilling in accordance with the drill plan

2.3. Monitor and adjust drilling technique according to conditions

2.4. Identify and remedy operational problems

2.5. Insert and seal grouting tubes into rib consolidation holes in accordance with the rib consolidation drill plan

2.6. Inject grout through the grouting tubes until visible evidence that grout has migrated into any coal rib fractures or cracks.

2.7. Carryout individual grouting completion procedure.

3. Drill and ream hole and install standpipe

3.1. Prepare for drilling and reaming in accordance with the drill plan

3.2. Choose drill bit and reamer appropriate to the geology

3.3. Carry pilot hole drilling and ream standpipe hole in accordance with the drill plan

3.4. Monitor and adjust drilling technique according to conditions

3.5. Identify and remedy operational problems

3.6. Prepare and install standpipe in accordance with the drill plan

3.7. Grout in standpipe in accordance with the drill plan

3.8. Maintain communication with all relevant personnel

4. Maintain equipment and housekeeping

4.1. Monitor the drill rods for wear and damage and dress and grease threads in accordance with standard procedures or replace rods as required.

4.2. Monitor all drill equipment and hoses and ancillary equipment and carryout remedial action

4.3. Apply environmental controls

4.4. Maintain safe and tidy site for the duration and at the conclusion of the job

4.5. Clean and maintain all grouting equipment

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 install underground in-seam directional drilling standpipe:

apply legislative, organisation and site requirements and procedures

apply safe manual handling practices

operate hand borers

operate drill rig

operate grouting equipment

apply operational communication procedures

apply inspection and monitoring procedures

apply maintenance procedures

interpret drill plans

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 install underground in-seam directional drilling standpipe:

legislative, organisation's and site OHS requirements

potential underground directional drilling hazards

potential work place hazards

potential underground environmental hazards

principles of underground in-seam directional drilling operations

organisations operational requirements and procedures

manufacturer's requirements and procedures

specific handling requirements for underground drilling equipment

housekeeping requirements and procedures

basic geology types and their impact on underground in-seam directional drilling operations

appropriate drill bits for different geology types

appropriate reamers for different geology types

importance and functions of the standpipe

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 the installation of underground in-seam directional drilling standpipe

implementation of requirements, procedures and techniques for the safe, effective and efficient completion of the installation of underground in-seam directional drilling standpipe

working with others to undertake and complete the installation of underground in-seam directional drilling standpipe that meets all of the required outcomes

consistent timely completion of the installation of underground in-seam directional drilling standpipe 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 installation of underground in-seam directional drilling standpipe

Guidance information for assessment

Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.

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

Work instructions may come from briefings, handovers, plans and work orders and may be written or verbal, formal or informal and may include:

nature and scope of tasks,

specifications

quality of finished works

achievement targets,

operational conditions,

obtaining of permits required

site layout,

out of bounds areas,

worksite inspection requirements,

lighting conditions,

plant or equipment defects,

hazards and potential hazards

coordination requirements or issues

contamination control requirements

environmental control requirements

barricade and signage requirements

Hazards may include:

mining equipment

roof and rib spalls

the presence of gases and water

release of gases or water from formation

spread of contaminants as a result of drilling or cleaning processes

working in proximity to drilling rig

use of high air or hydraulic pressure for drilling operations

entanglement in rotating pipes

string makeup and breakout hazards

Coordination requirements may include:

drill team

other equipment operators

maintenance personnel

supervisors

mine personnel

Drill plan may include:

rib consolidation hole pattern

standpipe location, dip and direction

hole sizes

hole depths

diameter, length and type of standpipe

Drilling technique may include:

applied feed pressure

rotational speed

regulation of water pressure and volume

Conditions my include:

variations in geology, including:

consistency of the coal

presence of stone (e.g. shale, sandstone)

presence of clay

water and gas emissions from the drill face

variations in environmental conditions (e.g. ventilation)

Operational problems may include:

loss of air or water volume or pressure

equipment failure

bogging or parting of rod string

reliability of communications

Grouting completion procedure includes:

stop pumping of grout when grout is visible

relieve pressure from the pump and grout lines, and

disconnect grout pump from tubing

Drill bits and reamers may include:

PCD bits

Tri-cone rock bits

Tungsten bits

Relevant personnel may include:

drill crew members

mine staff and supervisors

site safety personnel

statutory persons

Ancillary equipment may include:

pumps

water disposal lines and

ventilation equipment

Remedial action may include:

clear or remove obstructions

replace damaged hoses

top-up lubricants