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RI 7198 Earth Pressure At Rest And One-Dimensional Compression In Mine Hydraulic Backfills
By David E. Nicholson
The Bureau of Mines has constructed a special compression chamber for developing stress-strain relationships of mine backfill and simulating the high compressive ground pressures encountered in underg
Jan 1, 1968
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RI 6050 Oxygen Analysis Of Mixed Fluoride Salts ? Summary
By J. L. Potter
An inert-gas fusion technique was applied by the Bureau of Mines to the oxygen analysis of mixed-fluoride electrolytes used in electrowinning uranium and the rare-earth metals. Method development
Jan 1, 1962
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RI 7393 Development Of High-Temperature Vanadium-Base Alloy
By G. H. Keith
A vanadium-base alloy consisting of the following elements in weight-percent--molybdenum, 20; titanium, 10; carbon, 0.1; silicon, 0.5; and yttrium, 0.5--had exceptionally high strength at temperatures
Jan 1, 1970
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Railroad Locomotive Whole-Body Vibration Study: Vibration, Shocks And Seat Ergonomics - Introduction
By R. Luhrman, E. Christ, B. Gores, S. Fischer, E. Johanning
North American railroad locomotive operators (engineers and conductors) are exposed to multi-axis vibration and shocks (1, 2). A recent epidemiological survey showed a prevalence of serious type of ne
Jan 6, 2006
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RI 8131 Production of Blister Copper by Electric Furnace Smelting of Dead-Burned Copper Sulfide Concentrates
By D. L. Paulson
The Bureau of Mines is investigating pyrometallurgical and chemical methods for extracting copper from sulfide ores under conditions that provide for control of gaseous and solid emissions. Under this
Jan 1, 1976
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IC 9236 - Cleaning, Disinfecting, And Sterilizing Self-Contained Self-Rescuer Mouthpiece Assemblies Used In Hands-On Training
By Henry J. Kellner, Michael J. Brnich
This U.S. Bureau of Mines report addresses issues involved in using a limited number of training apparatus to give hands-on self-contained self-rescuer (SCSR) training to a succession of miners, and p
Jan 1, 1989
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Deep Cover Pillar Extraction In The U. S. Coalfields
By Keith A. Heasley, Frank E. Chase, Christopher Mark
Deep cover retreat mining (overburden in excess of 750 ft) is an important emerging issue which will intensify in the future as the more easily mined shallow seam reserves are depleted. Analysis of M
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IC 8182 Sandstone As Dimension Stone (18f11b54-5b29-46e4-a834-7d5d7d48dcf4)
By Oliver Bowles
Sandstone, a widely distributed siliceous sedimentary rock, is the third most popular building stone in the United States. It is formed by the breaking down of preexisting rocks by weathering, subsequ
Jan 1, 1963
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OFR-23F-87 Coarse Coal Hydrotransport Testing At The Hydraulic Transport Research Facility - 2-Inch By 0 Clean Coal, 6-Inch Pipeline: R121
By Michael E. Henderson
The U.S. Bureau of Mines (BOM) constructed the Hydraulic Transport Research Facility (HTRF) to investigate the hydraulic parameters relating to the transport of coarse coal. To achieve these goals in
Jan 1, 1986
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IC 8039 Spectrochemical Analysis Of High-Purity Metals: A Review And Bibliography Of Recent Literature ? Summary And Introduction
By Maurice J. Peterson
The applications of optical spectrochemical methods of analysis for determining trace impurities in metals are described, and the need for developing analytical procedures capable of accurately determ
Jan 1, 1961
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RI 4827 Investigation Of High-Alumina Clays And Bauxite Of Northeastern Mississippi
By Donald F. Reed
In the Coastal Plain sedimentaries of northeastern Mississippi, high-alumina clays and kaolins, which are bauxitized locally to varying degrees, are found in many places along the contact between the
Jan 1, 1952
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IC 8174 Mining Methods And Costs, Deep Creek Zinc-Lead Mine, Goldfield Consolidated Mines Co., Stevens County, Wash. (fe7dea8b-47e3-46b7-bdd5-870727dc7898)
By Galen G. Waddell
The Deep Creek zinc and lead mine afforded an excellent example of a relatively small underground mine operation that approached the low mining costs of large, highly mechanized mines. An open stope m
Jan 1, 1963
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Evaluation Of A Novel Fire Blocking Gel To Prevent And Suppress Mine Fires
By Alex C. Smith
The National Institute for Occupational Safety and Health (NIOSH) and Northwest Barricade LLC (NWB) conducted a study to evaluate the effectiveness of a novel fire blocking gel for use in underground
Jan 1, 2010
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IC 9079 Improved Backup Alarm Technology For Mobile Mining Equipment
By Guy A. Johnson
Despite the use of warning alarms to alert miners to the backward movement of large mining equipment, miners still are injured too frequently in backup accidents. Currently approved backup alarm techn
Jan 1, 1986
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RI 9126 - Dual Leaching Method for Recovering Silver and Manganese From Domestic Manganiferous Silver Deposits
By John E. Pahlman
The Bureau of Mines has conducted research on a dual leaching method that offers the potential for the economic recovery of the silver, as well as of the manganese, contained in some domestic manganif
Jan 1, 1987
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OFR-77-83 Fire Hazard Evaluations Of Mine Materials In A Small-Scale Combustibility Apparatus
By A. Tewarson
Combustibility data are presented for 14 samples representing commonly used mine materials (treated and untreated wood, conveyor belt and brattice cloth). The combustibility data were obtained in the
Jan 1, 1982
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RI 4575 Investigation Of The K. T. Dome Zinc-Lead Mine Owen And Henry Counties, Ky.
By William A. Beck
The K.T. Dome Mine in Owen and Henry Counties, Ky., has been operated intermittently under several different owners since the early nineteen hundreds. No record of total production is available, but
Jan 1, 1949
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Statistical Summary Of Nonfuel Minerals - Statistical Summary
By Stephen D. Smith
The following tables summarize data on crude nonfuel mineral production for the United States, its island possessions, and the Commonwealth of Puerto Rico. Although crude mineral production may be mea
Jan 1, 1995
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RI 9105 - Fumes From Shielded Metal Arc Welding Electrodes
By J. F. McIlwain
The Bureau of Mines has investigated fumes generated by selected welding electrodes used in mines in order to help determine their relative health hazard potential. Fumes were generated and collected
Jan 1, 1987
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OFR-103(2)-75 Circuit Breaker Development And Application - USBM Contract Phase II Report - Section 1. Program Objectives And Results - 1.1 Summary
By D. A. Paice
Under the first phase of this contract as reported in the Phase I report it was determined that certain types of commercially available molded case breakers are capable of interrupting mine dc power s
Jan 1, 2012