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Solid Accurate Solutions |
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Stable Strata Consulting (Pty) Ltd |
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How important is inherent material strength in a pillar? |
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Thought for the day |
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Here’s a coal pillar at approximately 100 m deep. The mining method is pillar extraction and the size of this pillar is 6 m wide by 12 m long. The UCS of this coal is in the range 20—30 MPa |
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This is an iron ore pillar also at approximately 100 m deep. The mining method is pillar extraction and the size of this pillar is also 6 m wide by 12 m long. The UCS of iron ore is in the range 60—80 MPa MPa……….. |
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Just a thought…. |
