Monitoring Triggers
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Tell Tale movement:
< 10mm on "T" (total) &
< 5mm on "L" (lower)
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Tell Tale movement:
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Tell Tale movement:
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Tell Tale movement:
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Trigger Actions Responses for above Trigger Levels (Responsibilities)
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Mine Workers
(Miner Driver & Bolter Operator)
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Install support for Level Green.
Note and record any partings detected while drilling roof boltholes – inform Supervisor.
May increase level of support to suit conditions.
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Inform Supervisor of face conditions.
Note and record any partings detected while drilling roof bolt/cable holes – inform Supervisor.
Install support for Level Orange.
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Supervisor
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Monitor newly installed Tell Tales 2 times per shift for first 5 days after installation and record info on shift report.
Monitor all other Tell Tales once per shift and record info on shift report.
Ensure Installed support is in accordance with Support Plan
Ensure excavations are within design specifications.
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Notify relevant Coordinator
Investigate and determine if Tell Tale or Extensometer is required to monitor ground conditions.
Note location & nature of conditions/geological structures on shift production reports.
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Notify Geotechnical Engineer and relevant Coordinator.
Stop work and correct deviations from Support Plan immediately
Monitor area and withdraw if necessary.
Note location of structures, failures and telltale movements on shift reports.
Install additional monitoring as required (Telltale).
Monitor and record Tell Tales every hour.
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Withdraw men, No Road and notify Mine Manager and Geotechnical Engineer.
Ensure nobody works under unsupported ground.
Requires approval from Mine Manager before changing down from Level Red.
Participate in Risk Assessment for fall recovery where required.
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Site Geotechnical Engineer
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Check shift reports for changed conditions.
Routine monitoring and mapping.
Have all Support Plans prepared and signed off.
Provide plots of instrument results.
Ensure all support consumables are available on site.
Conduct duties as defined in PHMP Responsibilities.
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Consult with relevant Supervisor and Coordinator
Check shift reports for changed conditions.
Inspect, and map within 48 hrs of report.
Determine whether remedial action is required.
Determine level of monitoring required.
Review TARP levels & triggers if necessary.
Review instrument monitoring intervals.
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Consult with relevant Supervisor and Coordinator
Inspect and map area as soon as practicable within 12 hours of report.
Determine whether additional support is required and other corrective actions.
Determine level of monitoring required.
Participate in Strata Control PHMP meetings.
Review TARP conditions & triggers if necessary.
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Consult with Mine Manager, relevant Supervisor and Coordinator
Inspect area as soon as practicable and within 4 hours of report.
Assist with the development of a recovery plan.
Provide recommendations regarding reducing level of support.
Participate in Risk Assessment for fall recovery where required.
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Underground Mine Manager
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Monitor shift reports.
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Consult with Geotechnical Engineer, relevant Supervisor and Coordinator
Authorise Recovery Plan
Partake in Strata Control PHMP meetings and advise SSE on recommended response.
Review and approve any proposed change to TARP.
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Advise SSE on recovery plan.
Authorise reduction of level of support.
Notify Site/Industry Safety & Health Representatives and Inspectorate as required.
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