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Mine Ground Control / Roof Control Plan Checklist
Este checklist está em inglês.
Assess compliance of an underground mine's ground and roof control practices against MSHA requirements, covering the approved plan, support installation, and examinations for hazardous conditions.
MSHA 30 CFR 75.220MSHA 30 CFR Part 57 Subpart BMSHA Roof Control Plan
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Approved Ground/Roof Control Plan
- Is an MSHA-approved roof control plan (coal) or ground control plan (metal/nonmetal) available at the mine? *
- Are the approved support spacing and installation sequences followed for the mining method in use? *
- Has the plan been reviewed and updated for changed geologic or mining conditions? *
Roof & Rib Support Installation
- Are roof bolts, mats, straps, or other support installed within the maximum allowable distance from the face? *
- Is support installed under permanent or temporary support protection (no work or travel under unsupported roof)? *
- Are roof bolt torque/anchorage tests conducted to verify support adequacy? *
- Are areas of unsupported roof posted or barricaded against entry? *
Scaling & Loose Ground
- Is loose or hazardous rock on the back, ribs, and face scaled down or supported before work proceeds? *
- Is scaling performed with tools and from a location that protects the miner? *
- Are persons prohibited from working or traveling beneath loose or unsupported ground until it is scaled or supported? *
Examination & Detection
- Are examinations for ground conditions (sound-and-vibration, visual) conducted at required intervals? *
- Is a program in place to detect and respond to changing roof conditions such as roof falls or ground movement? *
- Are hazardous conditions corrected before miners are exposed? *
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