In the world of mining, structural collapse is a worst-case scenario. Whenever ground gives way, it puts miners at risk—and it often leads to site closure.

Once all miners are accounted for, it’s time for the recovery operation to begin. Limited visibility often means it’s difficult to assess conditions in real time. Ventilation may also be blocked, and a further collapse could be imminent, so sending staff to check is impossible.

At a site in Iowa, one operator recently faced ground collapse. So, traditional inspection was completely off the table. The mine was highly unstable, with ongoing rockfalls. Choices were further limited by tight access points and flooding, and being underground meant there was no GPS. So, planning a response was incredibly difficult.

Engineers deployed inside a mine shaft

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