Spreadsheet: 3cfcbc94-b7f8-4a8c-8ee5-0a683a6a7c1d
Sheet: OMAT TBRA

 |  | OMAT Task-Based Risk Assessment (for OEM records only)
 | Assessment reference number: Worked Example - Integrated Bolter Miner
Task | Name of Task:  [NAME] |  |  |  |  |  |  | Date:
No. | Task Process Map Reference: |  |  |  |  |  |  | Location:
 | Team: |  |  |  |  |  |  | Facilitator:
2 | Task Step ID # | Potential Unwanted Event | Relevant DP | Event Likelihood | Maximum Reasonable Consequence | Risk Ranking | Current Design Controls | Control Evaluation | Suggested New Design Controls | Suggested Administrative Controls |  |  | Task Steps (from process map)
 | 1 - retrieve bolting materials | Hazardous Manual Tasks | Manual Tasks | Almost Certain | Minor |  | Provision of storage pod allowing bolts and plates and other supplies to be accessed without requring awkward postures. | Passive engineering control which reduces exposure to awkward postures. Task still requires repeated manual handling - manual task risk evaluation required. | Would be eliminated by automated bolting. | Ensure supply pod is loaded onto CM via LHD. |  | ID# |  |  |  |  | Consequence |  |  |  |  |  |  |  |  |  |  |  |  |  | Very Low | 1
 | 2 - walk along platform | Fall on same level | Access | Possible | Medium |  | Platform is single level and sufficiently wide to allow miners wearing self-rescuer and battery to walk without turning sideways. Storage locations are provided for dril steels, chemicals, plates etc which do not impinge on the walkway  and reduce the risk of tripping hazards. Platform handrails are provided. | Passive engineering control which reduces risk of tripping. Assess via general arrangement drawing with respect to large male with rescuer & battery. | Platform lighting would reduce the risk further, requires careful placement to ensure no glare in operator's eyes. Lighting survey required. | Ensure good house keeping. |  | 1 | Retrieve bolt, plate and chemicals |  |  | Likelihood | Minor | Medium | Serious | Major | Catastrophic | Select |  |  |  |  |  |  |  |  | Low | 2
 | 3, 6, 7 - handle drill steel and bolts | Hazardous Manual Tasks | Manual Tasks | Almost Certain | Serious |  | [NAME] rigs are oriented to place drill head close to platform. Platform space adjacent to bolting rigs is ample to allow miner wearing self-rescuer and battery to get as close as possible to drill head, reducing reach distance to 0.5m. | Passive engineering control which reduces reach distances, and thus shoulder load during these tasks steps. The task still requires repeated manual handling - manual tasks risk evaluation required. | Would be eliminated by automated bolting. | Consider task rotation. |  | 2 | Walk along platform to bolting workstation |  |  | Almost Certain | Moderate | High | Critical | Critical | Critical |  |  |  | Minor | 1 |  |  |  |  | Medium | 3
 | 4 - place mesh in position | Hazardous Manual Tasks | Manual Tasks | Almost Certain | Medium |  | A mesh carrier is provided which allows a mesh to be loaded via LHD and brought forward to the bolting rigs without manual handling. A step is provided to allow bolters to reach roof mesh. | The engineering control allows bolters the option of reducing the awkward posture required to reach roof mesh, however it creates a slip/trip hazard. manual tasks risk evaluation required. | Provision of a height adjustable platform would allow the reach distance to be minimised regardless of cutting height. Would be eliminated by automated bolting (and  automated mesh placement) or use of a spray on polymer to provide skin protection. | Consider task rotation |  | 3 | Place drill steel in chuck |  |  | Likely | Moderate | High | High | Critical | Critical |  |  |  | Medium | 2 |  |  |  |  | High | 4
 | 5, 8, 9, 10 - operate bolting controls | Struck by materials / Caught between moving objects | Machine operation and controls | Possible | Major |  | Two handed control operation is required for fast feed operations. Hydraulic hosing in the operator workstation is behind covers or otherwise protected. | Engineering control prevents the operator from having a hand in a hazardous zone during fast-feed operations. Operator is isolated from hydraulic fluid as far as possible. Audit with respect to MDG35.1 & MDG41 | Would be eliminated by automated bolting. | Training and supervision to ensure two-handed control is not defeated. |  | 4 | Place roof mesh into position |  |  | Possible | Low | Moderate | High | Critical | Critical |  |  |  | Serious | 3 |  |  |  |  | Extreme | 5
 | 5, 8, 9, 10 - operate bolting controls | Inadvertant or erroneous control operation | Machine operation and controls | Likely | Major |  | Guarding is provided to prevent inadvertent operation from falling materials. Controls are shape coded and in consistent loactions to reduce selection errors. Directional control-response relationships are compatible. | Engineering control will reduce but not eliminate probability of unwanted event. Shape coded controls could be swapped during maintenance. Requires ergonomist to assess HMI. | Ensure different shape handles cannot be swapped during maintenance. Would be eliminated by automated bolting. | Training and objective assessment of operator competency. |  | 5 | Operate controls to raise timber jack, drill into roof, lower [NAME] |  |  | Unlikely | Low | Low | Moderate | High | Critical |  |  |  | Major | 4
 | 5, 8, 9, 10 - operate bolting controls | Hazardous manual tasks | Manual Tasks | Possible | Minor |  | Control layout and design allows operation without exposure to awkward postures or forceful exertions. | Passive engineering control which reduces manual tasks risks ALARP. MDG35.1 requires assessment of reach distances etc. | Would be eliminated by automated bolting. |  |  | 6 | Remove drill steel |  |  | Rare | Low | Low | Moderate | High | High |  |  |  | Catastrophic | 5
 |  |  |  | Select | Select |  |  |  |  |  |  | 7 | Place bolt in [NAME] |  |  | Select
 |  |  |  | Select | Select |  |  |  |  |  |  | 8 | Operate controls to raise bolt to roof
 |  |  |  | Select | Select |  |  |  |  |  |  | 9 | Place resin in drill hole and raise bolt using controls
 |  |  |  | Select | Select |  |  |  |  |  |  | 10 | Operate controls to bolt, lower [NAME]
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