Anyone with current or past experience in the coal mining industry knows that one of the major principal hazards is uncontrolled ground movement, particularly slope failures in open-cut mines.
From a geotechnical engineering perspective, operating under unstable slopes can be done safely, as long as the risk profile of an unexpected collapse is clearly understood and controls are put in place to mitigate any unwanted consequences.
It is from this perspective that the problem of unstable slopes be addressed during extraction and safety planning for a site.
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