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Accession Number PB2013-102161
Title Yield Pillar Sizing: An Empirical Approach.
Publication Date 1995
Media Count 34p
Personal Author R. O. Kneisley
Abstract An empirical method, based on U. S. Bureau of Mines field studies in several Western U.S. coal mines, is presented for sizing gate road yield pillars. Discriminant analysis was used to generate functions separating successful from unsuccessful case studie ...
Keywords Coal Mine Roof Rating(CMRR) System
Coal mines
Design methodology
Mine operators
Model parameters
Pillar length

Source Agency Bureau of Mines
NTIS Subject Category 48A - Mineral Industries
46E - Structural Mechanics
50D - Soil & Rock Mechanics
Corporate Author Bureau of Mines, Washington, DC.
Document Type Technical report
Title Note Rept. of investigations.
NTIS Issue Number 1306
Contract Number N/A

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