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Wednesday Morning Session, April 24, 1940 - MinutesBy AIME AIME
I am happy to welcome you to the twenty-third conference of the National Open-Hearth Committee, and our joint conference with the Blast Furnace Committee, of the American Institute of Mining and Metal
Jan 1, 1940
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OFR-106-84 Testing Jet Fans In Metal/Nonmetal Mines With Large Cross-Sectional AirwaysBy M. F. Dunn
The objective of this work was to define jet fan performance in d variety of large cross-section underground mine applications and to develop guidelines for thin performance in open airways, dead head
Jan 1, 1983
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First-Quarter Mineral Industry Performance And Trade-Related Employment In Mining - The U.S. EconomyReal gross national product increased at a larger-than- expected annual rate of 8.3 percent in the first quarter of 1984, with both consumption and investment spending increasing significantly in real
Jan 1, 1984
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NATM Through Clean Sands—The Michigan Street ExperienceBy Mohamed A. Younis, Paul J. Headland, Paul H. Madsen, Vojtech Gall
INTRODUCTION A 100 ft long, 20 ft high and 18 ft wide NATM tunnel was excavated through grouted clean sands beneath a busy city street, including a variety of existing utility lines. The new tunnel
Jan 1, 2007
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OFR-136-78 Propagation Of EM Signal In Underground MinesBy Terry S. Cory
This report is a comprehensive summary of the results of the propagation measurements program conducted for the US Bureau of Mines under Contract H0366028. Data was gathered in the MF frequency range
Jan 1, 1977
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OFR-79(1)-76 Concept Feasibility Study For Training Equipment To Improve Coal Productivity - Volume 1 Of 2By Anthony E. Szczuka
Two facets of surface mining were studied: feasibility of using training simulators to increase productivity of haulage trucks, front-end loaders, and shovels; and improving the efficiency of dragline
Jan 1, 1976
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Oil And Gas Developments In Arkansas in 1945By D. K. MACKAY
The production of oil and gas in Arkansas is confined to two distinct and widely separated regions of the state; namely: (1) South Arkansas in the Gulf coastal plain, where 49 fields-many containing t
Jan 1, 1946
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RI 3658 Progress Report – Metallurgical - 53 - Possible Substitutes for Nickel in the Present Five-cent coinBy C. Travis Anderson
"Nickel is an essential metal in stainless steel, armor plate, and nickel steels and also in nonferrous alleys, such as monel metal and cupre-nickel, which are used in marine service. Nickel is one of
Aug 1, 1942
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Coal Mine Seismicity And Bumps: Historical Case Studies And Current Field ActivityBy Keith A. Heasley, John L. Ellenberger
The National Institute for Occupational Safety and Health (NIOSH) has continued the research role of the former U. S. Bureau of Mines to develop techniques that will reduce the hazards in the mining w
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Sources of Nitrate in Groundwater Near Roadway Rock Blasting SitesBy David M. Langlais, Krystle Pelham
"Explosives used in blasting operations, natural and anthropogenic sources such as septic systems,fertilizers, and decomposing vegetation can potentially contaminate groundwater with nitrate in thevic
Jan 1, 2016
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RI 5130 Physical properties of mine rock part IIIBy B. E. Blair
"This report presents the physical properties and related geological and petrographic data of some 84 rock types from operating mines, quarries, or blasting research test sites. These fundamental rock
Jun 1, 1955
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Excavation Support At Historic Buildings In An Urban Environment - A Case StudyBy Tony Mazzo
It has often been said by consulting engineers that foundation contractors are in the business of taking risks. One would agree that the mere fact a foundation project can be budgeted, planned, engine
Jan 1, 2003
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OFR-17-82 Field Survey Of Float Dust In Coal Mining OperationsBy J. A. Kost
The objectives of this contract were to determine the amount, size, and deposition of float coal dust (74 x 10 microns) generated during the mining and transporting of coal in underground U.S. mining
Jan 1, 1981
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Nature Of The Carbides Of IronBy L. J. E. Hofer
THIS BULLETIN analyzes and summarizes research at the Bureau of Mines dealing with the preparation, properties, and reactions of iron carbides in the period 1948-60, part of which was sponsored by Wri
Jan 1, 1966
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OFR-32-80 Dewatering Systems For Surface Coal MinesBy J. E. Rourke, O&apos
This report incorporates a review of available dewatering technology and an evaluation of its relevance to surface coal mines in the Interior Province of the United States. Guidelines for the selectio
Jan 1, 1979
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Jameson Cell: The “Comeback” in Base Metals Applications Using Improved Design and Flow SheetsBy K. E. Barnes
"The “Jameson Cell” flotation cell was developed at Mount Isa Mines in the late 1980’s to address deficiencies in our flotation column installations. Early base metal installations had a variable reco
Jan 1, 2006
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Study on Utilisation of Flyash for Barrier Layer/Buffer Materials for Radioactive Waste DisposalAbout 15 per cent of total electricity (400 MkW) was generated by nuclear power plants in the world (2009) and about 36 000 tons of uranium has been mined in uranium mines annually. Radioactive waste
Dec 6, 2010
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RI 4128 Gasification of Lignite & Subbituminous Coal - Progress Report 1945-46By E. O. Wagner, A. W. Koth, V. F. Parry, J. B. Goodman, D. C. Gernies
"INTRODUCTION A commercial-scale pilot plant for gasification of lignite was completed by the Bureau of Mines at Grand Forks, N. Dak., early in 1945 as an extension of work on, gasification of low-ran
Sep 1, 1947
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Recovery Of Phosphate Values From Benefication WastesBy N. Abdel-Khalek, A. Youssef
The tailings from beneficiation of Florida phosphate ore contain considerable phosphate values. These tailings are currently discharged into large disposal areas. More than three million tons of P2O5
Jan 1, 2002
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Underground Haulage Selection: Shaft Or Ramp For A Small-Scale Underground MineBy B. Elevli
This paper deals with the selection of alternative accesses to a podiform chromite orebody in Turkey. The most important alternatives studied in a related project have been stated as a new vertical sh
Jan 1, 2002