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OFR-8-73 Evaluation Of Methanometry In Coal Mines
By Ralph D. Gift
This report describes a program of research to evaluate methanometry in coal mines. The program commenced by conducting an extensive state-of-the-art survey. Details of the survey are presented which
Jan 1, 1972
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OFR-52(2)-84 Surface Coal Mine Spoil Stability Study Eastern Coal Province - Volume II
By Paul G. Swanson
This investigation was conducted to identify the principle causes of spoil instability problems in the Eastern Coal Province. The study was also conducted to develop a matrix to predict the strength a
Jan 1, 1983
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IC 8365 Recommended Safety Standards For Shaft Sinking (Revision Of IC 7810) ? Introduction
Unfortunate occurrences resulting in injuries, loss of life, and destruction of property by explosion, fire, and other mishaps during shaft sinking focused the attention of the Bureau of Mines on the
Jan 1, 1968
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Workplace Stress
YOUR mom was right …count to 10. Most workers today report that they find their jobs stressful. Miners, in particular, are faced with hazardous and changing environments. Every shift provides differen
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OFR-49-76 The Development Of A System To Suppress And Extinguish Fully Developed Coal Dust Explosions: Progress Report
By L. D. Johnson
On a project which is to develop a system to suppress coal dust explosions, a facility has been built and several devices tested. The facility is a 317-foot, 4.5-foot diameter shock tube and to date 5
Jan 1, 1972
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OFR-13-72 Grouting Of Horizontal Holes In Coalbeds - Section I - Introduction
Horizontal holes are drilled underground into coalbeds to control methane flow from ribs and active face areas and to make gas pressure measurements in coalbeds. Gas pressure measurements are made by
Jan 1, 1972
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RI 5996 Gasification Of Coal By Hot Recycled Helium In A Laboratory-Scale Exchanger-Type Gasifier ? Summary
By R. L. Gall
This report describes Bureau of Mines experiments in gasifying coal in a helium-heated tube-coil reactor. The purpose of this work was to investigate helium as a medium for transferring heat from a nu
Jan 1, 1962
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Helium ? General Summary (9246d274-98aa-4b94-b5e5-a562b0d0980a)
By Harold W. Lipper
BUREAU OF MINES helium plants produced a. record-breaking 477 million cubic feet of this essential element in 1959. The supply of helium was less than the demand before operations were resumed at the
Jan 1, 1960
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RI 6608 Entrained Bed Carbonization Of Bituminous Coal - Tests On An Australian Coal
By W. S. Landers
This report presents a detailed study of low temperature, entrained-bed carbonization of an Australian coking coal. The coal studied was high-volatile B bituminous from the Foybrook mine, an open-cut
Jan 1, 1965
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OFR-137-83 A Simulation Model For Predicting The Performance Of Vibrating Screens
By Kevin Hennings
Screening efficiency models developed to date rely almost exclusively on empirical formulas based upon large amounts of acquired operating data. A screening model was developed using a combination of
Jan 1, 1982
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OFR-114-76 Surface Mine Haulage Road Design Study
By Bruce E. Stauffer
The report recommends criteria for the design of safe surface mine haulage roads. Information relevant to road design at surface mine sites delineates vertical and horizontal alignment; subbase and su
Jan 1, 1976
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RI 2778 The Application Of Compressed Air To The Elliot Pool, Nowata County, Oklahoma ? Introduction
By Ben E. Lindsly
The recovery or partial recovery of the oil remaining in oil sands after the usual methods of production have become unprofitable is perhaps the greatest problem in the petroleum industry today. The a
Jan 1, 1926
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OFR-84(6)-76 A Master Environmental Control And Mine System Design Simulator For Underground Coal Mining - Volume VI - Production Subsystem ? I. Introduction
By C. B. Manula
Simulation continues to hold the spotlight among the Operations Research applications in the operational side of mining. One reason for this is the need to solve the many waiting line and storage prob
Jan 1, 1974
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OFR-11(2)-82 Recontouring Of Steep-Slope Abandoned Contour Mines - Volume II - Appendices
By Daniel I. Carey
Current and potential dragline reclamation usage was evaluated for the U.S. coalfields based on data gathered and analyzed during field surveys, literature reviews and contacts with manufacturers. It
Jan 1, 1981
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RI 8470 Iron-Base Alloys Strengthened by Laves Phases as Substitutes for Stainless Steels
By J. S. Dunning
One Federal Bureau of Mines research goal, to minimize requirements for domestically scarce mineral commodities through conservation and substitution, can be accomplished by utilizing more abundant el
Jan 1, 1980
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IC 8166 X-Ray Mass Absorption Coefficients - A Literature Survey (12aff5f5-c7f5-442e-aa90-d2fc92f6ba01)
By Howard M. Stainer
Published X-ray mass absorption coefficients were compiled and tabulated. These coefficients are required for various X-ray analytical techniques. Values obtained from 28 authors are listed for 87 ele
Jan 1, 1963
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IC 8166 X-Ray Mass Absorption Coefficients - A Literature Survey
By Howard M. Stainer
Published X-ray mass absorption coefficients were compiled and tabulated. These coefficients are required for various X-ray analytical techniques. Values obtained from 28 authors are listed for 87 ele
Jan 1, 1963
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IC 8580 Materials Handling Research: The Bucket-Wheel Excavator
By G. C. Price
This study traces the development of the bucket-wheel excavator, points out the differences in the German- and American-type wheels, and gives the major design criteria and the advantages and disadvan
Jan 1, 1973
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OFR-21-82 Baseline Environmental Monitoring Program For The Bear Creek Hydraulic Borehole Mining Demonstration Test
By Lyda W. Hersloff
An environmental monitoring program was established to assess the baseline of parameters which may be impacted by a research and development hydraulic borehole mining operation. During the baseline pr
Jan 1, 1981
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RI 9429 - Bending Fatigue Tests 2 and 3 on 2-Inch 6x25 Fiber Core Wire Rope
By J. R. Bartels
The U.S. Bureau of Mines has established a wire rope research laboratory to examine the factors that affect the life of wire rope. Two sin-diameter 6x25 fiber core (FC) ropes were degraded on a bendin
Jan 1, 2010