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IC 8808 - In-Mine Evaluation Of Underground Fire And Smoke DetectorsBy Russell Griffin
The current state of the art of fire and smoke detection technology is reviewed from the standpoint of suitability for use in under- ground metal and nonmetal mines. Detection modes, fire signatures,
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OFR-23(2)-79 Study Of Methods To Improve Pillar Extraction Practices In Underground Coal Mines - Volume II - Haulage Practices In Retreat Mining ? I. IntroductionThe following pages discuss the objectives, the background, and scope of work of an industrial engineering analysis of far-,n haulage systems in underground retreat coal mining. This study ran concurr
Jan 1, 1975
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Fatal Injuries In The Mining Industry: Census Of Fatal Occupational InjuriesAn examination of the Census of Fatal Occupational Injuries (CFOI) data for the period 1992-1995 shows that 659 fatalities occurred in the mining industry as defined by the SIC. Oil and gas accounted
Jan 5, 2000
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IC 8802 Mine Power Systems Research (In Four Parts) 4. Transients And EnclosuresThis Bureau of Mines report concerns two subjects important in the application of electric power in mining systems. Electrical transients and their suppression are discussed, and several consideration
Jan 1, 1979
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MLA 22-81 - Mineral Resources Of The Buttermilk Rare II Area (No. 5-038), Inyo County, California - SummaryBy Stephen R. Iverson
The U.S. Bureau of Mines made an economic appraisal of the Buttermilk study area, Inyo County, California in October 1980. Results of surveys indicate no potential for metallic, non-metallic, or energ
Jan 1, 1981
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OFR-37-72 Development Of An Air Quality Simulator For Coal Mines - ForewordBy G. E. Geiger
The purpose of this research was to develop a computer simulator fur predicting the air quality in existing coal mines as well as a design aid for developing new mines. In addition to the air quantity
Jan 1, 1972
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RI 2475 The Metallurgical Treatment of Zinc-Retort ResiduesBy B. M. O'Harra
The residues resulting from the retort distillation of zinc ores have from 40 to 75 per cent of the weight of the original ore and contain from 5 to 15 per cent zinc . A rough estimate indicates that
Apr 1, 1923
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OFR-17-73 Assessment Of Electromagnetic Noise Measurements Taken By Bureau Of Mines Contractors ? I. IntroductionAs part of its research and development activities concerning coal mine operational/emergency communications sys terns, the Bureau of Mines commissioned several contractors to conduct electromagnetic
Jan 1, 1972
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OFR-136-84 Ultralightweight Oxygen ContainerBy Ben Aleck
The objective of this program was to adapt Space Shuttle technology on high-performance spherical pressure vessels to cylindrical pressure vessels. Specifically, a cylindrical aluminum liner overwrapp
Jan 1, 1983
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Improved Noise Measurement - The Objective:To be able to continuously monitor the noise to which underground workers are exposed as a better way to help prevent hearing damage. The Approach: The Bureau of Mines has developed a Time-Res
Jan 1, 1975
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OFR-154-81 Develop Grounding Practices For Metal/Non-Metal MinesBy Wils L. Cooley
This report analyzes electrical accident data in the metal/non-metal mining industry. Accidents are categorized to determine their root causes. Special attention is given to accidents associated with
Jan 1, 1981
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OFR-59-78 Test Of Inorganic Replacements For ResinsBy Fun-Den Wang
Rock bolting has become a major method of coal mine roof support because of its effectiveness, economy, and convenience. The polymeric-resin-bonded bolt has generally proved to be more effective than
Jan 1, 1976
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RI 3221 Consumption Trends in Roofing-Slate IndustyBy Oliver Bowles
"INTRODUCTION Slate has earned a high reputation as a roofing material, carefully selected and properly placed it is rainproof, attractive, and extraordinarily durable. Despite there qualities in its
Nov 1, 1933
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OFR-34-75 Preparation Of Pure And Impurity-Stabalized Polymorphs Of Silica In The Minus Five Micron Particle Size Range By Non-Comminution TechniquesBy Jesse J. Brown
Over 60 simple; were prepared and forwarded to Dr, S. Z. Toma, TPO, PMSRC as a result of this project. Included among these samples were various low temperature forms of silica. Samples of quartz, cri
Jan 1, 1973
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IC 8760 Anthracite In The Narragansett Basin Of Rhode Island And MassachusettsBy William R. Barton
Anthracite has been mined from the Narragansett Basin of Rode Island and Massachusetts sporadically, and with limited success, for more than 170 years. Beginning in 1974, interest in the coal of the B
Jan 1, 1977
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RI 9224 - Foundation Response to Subsidence-Induced Ground Movements: A Case StudyBy Jeffrey S. Walker
The purpose of this U.S. Bureau of Mines effort was to determine if ground movement caused by mining-induced subsidence is directly transferred to a structure and, if so, how that transfer takes place
Jan 1, 1989
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OFR-30-79 Development Of An Improved Tamper-Proof Filter CassetteBy Gene F. ] [Faufaul
This contract was concerned with the design, development, fabrication and testing of an improved tamper-proof filter cassette assembly for use in the, collection and evaluation of dust particulates, p
Jan 1, 1978
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IC 9202 Characterization Of The 1986 Stone Mining WorkforceBy Shail J. Butani
In 1986 the Bureau of Mines conducted a probability sample survey, Mining Industry Population Survey, to measure such employee characteristics as occupation; principal equipment operated; work locatio
Jan 1, 1988
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MLA 59-87 - Mineral Resources Of The South Fork And Sand Hollow Study Areas, Crook County, Oregon ? SummaryBy Jerry E. Olson
In 1986, at the request of the U.S. Bureau of Land Management, the U.S. Bureau of Mines studied part of the 20,071-acre South Fork Wilderness Study Area (OR-005-033) and part of the 8,791-acre Sand Ho
Jan 1, 1987
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OFR-4-77 Feasibility Study Of Detecting Voids By Shear Wave Refraction Methods ? SummaryBy Roger M. Turpening
This study was performed to examine the feasibility of using seismic shear waves to detect the presence of abandoned coal mines. !he Antiquity Coal Mine near Antiquity, Ohio was used as a region of kn
Jan 1, 2012