Underground Ground Control Major Hazard Standard - MIRMgate

Major Hazard StandardUnderground Ground Control** Uncontrolled copy. Use latest revision **Step 4. Install the ground reinforcement.The ground reinforcement must be installedaccording the SWP for that groundreinforcement type, and any specialinstructions that might be required by theGround Control Plan must be followed.Step 5. Make the final adjustment of groundreinforcement.The final adjustment or modification mayinclude post-tensioning, post-grouting,placing extra bolts to pin straps and mesh,application of curing sprays on shotcrete,etc. These tasks must be treated with thesame care as during the initial installationstage, and will often involve specialinstructions in the Ground Control Plan andin the SWP.Step 6. Check the installation and groundconditions.The Ground Control Operator must ensurethat the ground reinforcement has beeninstalled according to the Ground ControlPlan, but has not (regardless of the Plan)inadvertently produced a hazardouscondition.Step 7. Record ground conditions and groundreinforcement conditions.It is important to record the groundconditions, the condition of the installedground reinforcement and any variations ordifficulties encountered during installation.This information is vital for the GroundConditions Model. A record of no variationsor no difficulties is equally as important.Obtain correct planAssemble and checkmaterials and equipmentHazard identificationassessment and actionDrill holes and/orprepare surfaceInstall ground supportPretension or adjust asrequiredRecord conditionsand/or variationsCheck installation andground conditionsThe Ground Control Installation ProcessSAF-MHS-01 Rev. 1 DOCS No. 55945 Issued: 19/06/00 Page 20 of 23