Underground Ground Control Major Hazard Standard - MIRMgate

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Major Hazard StandardUnderground Ground Control** Uncontrolled copy. Use latest revision **Personnel shall be delegated specific responsibilityfor authorising each stage of the multi tiered responseplan.1.6 Identifying the Required ResourcesAll equipment to be used for ground control shall beidentified and listed in the Ground Control Plan.There shall be a description of each type of machinestating the purpose of the machine and all the tasksfor which it can be used. The machine shall not beused for any other tasks unless approved in writingby the Mine Manager.2 Resourcing Requirements forGround ControlBased on the Ground Control Plan, the MineManager or nominated delegate shall define andacquire the resources to ensure quality groundcontrol work processes.2.1 Equipment SelectionWhen selecting the equipment to be usedunderground for ground control, the Mine Manageror nominated delegate shall consider the followingpoints relating to the design, selection, operationaland maintenance requirements of the equipment:• All ground-control equipment shall meet therequirements specified in the Ground Control Planand SAF-MHS-05 Underground MobileEquipment.• The ground control installation equipment shallhave performance specifications and maintenanceplans. These shall be used to check and maintainthe equipment or aspects of the equipmentperformance to the specifications required withrespect to ground control installation• The operator cabin on a bogger shall includeprotection from rockfalls from the backs and walls,i.e. the cabin shall be of an approved FOPS designas a minimum• The lighting design on a jumbo shall make thelocations to be drilled and scaled clearly visible;the canopy shall not reduce visibility• Jumbos shall be designed to minimise the risk ofthe operator being hit by a rockfall onto or into thecab, including by rocks deflected off the booms• Jumbo booms used to install ground support shallbe designed to be articulated back under supportedground, as well as to install ground reinforcementto the design requirements• Scaling machines and where a jumbo is used as ascaling machine shall have a canopy and otherprotection to stop rocks falling into the cab• Scaling machines and where a jumbo is used as ascaling machine shall be designed to minimise thehazard from catapulting resulting from rock impacton the boom• Portable hand-held lights, spotlights or selfstandinglights shall be available to personnelengaged in ground hazard identification andcontrol• Platforms used for scaling shall conform to thestandard SAF-MHS-08 Safe Working at Height• Hydraulic lines on platform-lifting equipment shallbe protected from damage• Scaling bars shall be fit for purpose (made of steel,straight, sharp), the correct length for the job and tobe adequately rigid• Equipment shall only be used for the purpose andtasks specified (see Section 1.6).When selecting, specifying or designing mechanicalequipment used in a rise for access or as a workplatform in a rise that equipment shall:• Have adequate overhead protection• Be designed to sustain the static or dynamicloading associated with:– The maximum credible rockfall from within therise (size and height of fall)– The normal operation of the equipment• Be designed to enable any load placed on theequipment under normal operating conditions to betransferred to the rock, and• Be designed so that no equipment protrudes outsidethe limits of the platform during travel in the rise.2.2 Documenting the Ground Control MaterialsSpecificationsThe material specifications of all ground support andreinforcement identified in the Ground Control Planshall be documented. All ground control materialspurchased or used shall conform to the specifications.2.3 Developing SWPsStandard Work Procedures (SWPs) shall bedeveloped for all ground control tasks. Theprocedures shall be systematically developed (e.g.Job Safety Analysis) and be under the control of anappropriate Document Control procedure.All tasks identified in the Ground Control Plan shallbe considered when the SWPs are developed. As aminimum, SWPs shall be developed for, or includeinstructions for, the following critical activities,where they are applicable to each operation:• Visual inspection• Watering down and dust suppression• Rise and slot inspectionSAF-MHS-01 Rev. 1 DOCS No. 55945 Issued: 19/06/00 Page 5 of 23
Major Hazard StandardUnderground Ground Control** Uncontrolled copy. Use latest revision **• Scaling• Jumbo scaling• Scaling machine operation• Manual scaling and scaling from a platform• Installing ground reinforcement• Shotcreting of the rock mass• Survey mark-up, sampling mark-up andgeotechnical mapping• Blast hole drilling• Blasting (charging and initiation)• Bogging• Rising• Ladder rising• Mechanical rising• Rise on pilot boreholes.• Raise boring• BackfillingIf other critical activities are identified, then SWPsshall be developed for them.SAF-MHS-01 Rev. 1 DOCS No. 55945 Issued: 19/06/00 Page 6 of 23
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Underground Ground Control Major Hazard Standard - MIRMgate

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