Solid Accurate Solutions |

Stable Strata Consulting (Pty) Ltd |

How important is inherent material strength in a pillar? |

Thought for the day |

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 |

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……….. |

Just a thought…. |