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….