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Floor slump on stope | Incident report

backfilling stopes

The NSW Resources Regulator has released a report regarding to floor slump on stope in an underground metals mine.

A Jumbo operator and a nipper were working on a stope that had previously been rock filled when they noticed the floor starting to slump. The floor slumped about three metres. A preliminary investigation suggested water from the Jumbo seeped through the floor and moved fine material into a larger void, resulting in the slump.

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The Regulator said:”Procedures for backfilling stopes should include adequate controls and verification to ensure that the ground is consolidated and no voids remain that could lead to slumping.”

Read more  Mining Safety News

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