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 proceduresmanufacturer's guidelines and specificationsAustralian standardsEmployment and workplace relations legislationEqual Employment Opportunity and Disability Discrimination legislation |
Interpret is defined as: the understanding needed by the person within their job role. | |
Risk is defined as: the chance of something happening that will have an impact upon objectives. It is measured in terms of consequences and likelihood (definition from AS/NZS 4360:1999 Risk Management). | |
Hazard is defined as: a source of potential harm or a situation with a potential to cause loss (definition from AS/NZS 4360:1999 Risk Management). | |
Mine site historical information may include: | sedimentology aspects of the mine site relating to subsidenceprevious inrushesgas content and compositionroof and floor technical dataover and underlying stratawater bearing stratapermeability of seam and stratahydrologyphysical property testing resultscaving characteristics ground stress behaviourmine plans |
Inrush may be defined as: | water or other fluid material, or any material that flows when wet; orflammable or noxious gaswhich may put the mine or persons at the mine at risk |
Inrush control zones are those areas of heightened awareness, necessitating specialised mining, monitoring and assessment techniques e.g. protective drilling. | |
Inrush controls may include, but are not limited to: | controls that eliminate the hazard by removing the damaging energy, e.g. drainage including pumping and ventilationcontrols that reduce the magnitude of the hazard (less water, less pressure etc), e.g. drainage, including pumping and ventilationcontrols that reduce the likelihood of the event through engineering or hard barriers, e.g. sealscontrols that reduce the likelihood of the event through procedural or soft barriers, e.g. establishment of inrush control zones, protective drilling controls that reduce the likelihood of the event through warnings, e.g. action levels associated with increased water make |
Systems of work may include: | drilling operationsbord and pillarplace changinglong wallhigh wallauger miningpillar extractionpartial extractionpunch miningshaft sinking and drifting |
Geological and physical conditions may include: | rankpetrologymoistureparticle sizeseam gaspyritesseam thicknessmulti seamsseam dipdepth of covercleatfriabilityintrusions |
Monitoring systems may include, but are not limited to: | continuous and/or periodic monitoringportable (hand held) monitoringcore samplesvisual observationgeological mapping borehole pressure readings |
Inrush hazards and potential sources may include, but are not limited to: | subsidence or failure of barriers and dam wallsstrata failuregas content and compositionabnormal rainfall eventsover and underlying stratawater bearing strataany peat, moss, sand, gravel, silt, or other material that flows when wet which may exist on or near a mineany coal peat, moss, sand, gravel, silt, or other material that may flow from a bin or storage facility/structurepermeability of seam and strataphysical propertiescaving characteristicsfaultsintrusions surface sourcestidal watersoceanssurface creeks, rivers, ponds, lakessurface impoundments or reservoirsabandoned minesworkings of adjacent current minesexisting workings of the mineother non-mining underground openingsshaftswellspipelinestunnels |
Personnel safety measures may include, but are not limited to: | remote control mininglimitation of numberstrainingphysical barriers e.g. drilling through stuffing boxemergency equipment e.g. oxygen self rescuerspersonal protective equipment (PPE) |
Legislative, and site requirements may include: | legislation and regulationsrelevant Australian standardsmanagement plansmanager's rulesOHS policy code of practicedams safety committee publicationsmanufacturer's instructionssafe working or job procedures (or equivalent) |
Inrush management system establish criteria and procedures for maintaining a safe environment, including: | hazard identification and quantificationrisk assessmentauthority and responsibilitycontrols established to managed identified risksreporting and communication requirementsdocument controlaudit and reviewprocedures for mine inrush monitoringmine planaction plansresponse plansemergency proceduresindividual group responsibilities training and education procedures |
Inrush prevention systemmust be established in accordance with the NSW Coal Mines (Underground) Regulation 1999 - Division 8, Clause 40 Implementation of an inrush prevention system. | |
Audit is defined as: a systematic examination against defined criteria to determine whether activities and related results conform to planned arrangement, and whether these arrangements are implemented effectively and are suitable to achieve the organisation's policy and objectives (AS/NZS 4804: 2001). | |