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The Initial Collapse of the Overburden Over Longwall Panels
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Citation (Style = APA)
Marino, Gennaro (1987). The Initial Collapse of the Overburden Over Longwall Panels. Proceedings 6th International Conference on Ground Control in Mining (ICGCM) 6th
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Marino, Gennaro (1987). The Initial Collapse of the Overburden Over Longwall Panels. Proceedings 6th International Conference on Ground Control in Mining (ICGCM) 6th
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: International Conference on Ground Control in Mining
Pages: 1
Publication Date:
Jan 1, 1987
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Abstract
Abstract
| Documented case histories are studied where data were found on the initial collapse of the overburden above the longwall panels. Under this scenario, the most controlled conditions exist for assessing the span capacity of the overburden (i.e., before failure the roof spans to fin coal abutments on two to all four sides). In an attempt to correlate theory to field observations, data are used on the overburden lithology, and the depth, width, and face advance of the panel, as well as, the subsidence conditions noted on the surface. The subsidence measured on the surface is used to determine when complete failure in the over- burden rock has occurred. |
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