WebHighwall Stability Ensuring highwall stability through proper ground control engineering is of paramount importance to safe highwall mining operations. The only fatality to occur during the last five years at a highwall mining operation was due to highwall collapse. WebMay 8, 2000 · The highwall is generally stable, containing significant sandstone bedding and had been prepared for highwall mining by pre-splitting at a layback angle of 15°. However, after the collapse, it was apparent that the blast hole marks in this section of highwall, which were clearly evident, were in fact the back row of the blast pattern and not ...

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Webconcern in highwall mining is highwall stability (1, 7, 8). Studies have shown that 3 of the 9 fatalities associated with auger and highwall mining in the last 20 years were caused by … WebHighwall failure is serious and can even be deadly. Last year, a mine in the Northern Cape (not linked to the Rössing or CNUC group) had a highwall collapse which tragically resulted in the loss of life. Experienced geotechnical engineers warn of the high safety margins and resources needed to effectively conduct slope stability monitoring. leadership template ppt

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Web6 hours ago · Tupperware. Tupper was born in New Hampshire in 1907. While he wasn't a great student, he spent a lot of his early life sketching out inventions in a notebook, such … WebA collapse of the highwall (Figure 7) fatally injured one front-end loader operator working to move coal from the stockpile at the highwall miner. It involved the unex- pected fall of a … WebApr 10, 2024 · The highwall collapse that resulted in the fatality of a loader operator The US-based Mine Safety and Health Administration (MSHA) has released an investigation … leadership template powerpoint