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A Statistical Analysis Of Falls Of Ground In South African Collieries
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Citation (Style = APA)
Vervoort, Andre (1990). A Statistical Analysis Of Falls Of Ground In South African Collieries. Ninth Conference on Ground Control Mining Proceedings (ICGCM) 9th
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Vervoort, Andre (1990). A Statistical Analysis Of Falls Of Ground In South African Collieries. Ninth Conference on Ground Control Mining Proceedings (ICGCM) 9th
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: International Conference on Ground Control in Mining
Pages: 8
Publication Date:
Jan 1, 1990
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Abstract
Abstract
| Falls of ground, such as falls of roof and sidewall collapses, are a major cause of fatalities and injuries in South African collieries. Based on information obtained from the accident reports of the various Chief Inspectors of nines, a statistical analysis was conducted covering the period 1970 to 1988. This study shows that the volume of rock in a fatal fall of ground is often quite small. In intersections, fatal falls are on average larger than in roadways and at the face. It was also found that in 36 % of all fatal falls of ground no temporary or permanent support was installed at the site of the accident. |
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