4. Mining or in situ disintegration of hard material
  5. Processes
  6. Stabilizing underground structure
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Longwall mining of thick underground mineral seams

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure
Patent

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Longwall mining of trona with prefracturing to prevent slabbing

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure
Patent

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Longwall mining system

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure
Patent

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Longwall mining with chain pillar recovery

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure
Patent

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Longwall trench mining system

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure
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