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First Caving And Its Effects--A Case Study
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Citation (Style = APA)
Hsiung, S. M. (1984). First Caving And Its Effects--A Case Study. Proceeding of the Fourth Conference on Ground Control in Mining (ICGCM)
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Hsiung, S. M. (1984). First Caving And Its Effects--A Case Study. Proceeding of the Fourth Conference on Ground Control in Mining (ICGCM)
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: International Conference on Ground Control in Mining
Pages: 11
Publication Date:
Jan 1, 1984
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Abstract
Abstract
| In late September 1984, a longwall panel in West Virginia lost 60 powered supports when the face had advanced for 250 ft. from the setup entry. An in-mine investigation showed that it was a first weighting failure resulting from inadequate Support capacity. This paper presents the results of finite element modeling, which have led to a better understanding of the first weighting failure mechanism. The dynamic impact of the first weighting failure on the powered supports is analyzed. The optimum capacity for the powered supports in order to control the roof at face area under the geological condition is discussed. |
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