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  • NIOSH
    Optimizing Secondary Roof Support With The NIOSH Support Technology Optimization Program (Stop)

    By Thomas M. Barczak

    The 1990s brought an unprecedented increase in the development of innovative technologies to provide more effective and easier-to-install roof support in underground mines. To facilitate the applicat

    Jan 10, 2000

  • NIOSH
    RI 8729 Building Seals by Pneumatic Stowing in Mine Closure Operations

    By Siavoljub D. Maksimovic

    The Bureau of Mines, through a cooperative agreement with Duquesne Light Co. of Pennsylvania, field tested a method of using pneumatic stowing of crushed limestone to construct seals in long-abandoned

    Jan 1, 1982

  • NIOSH
    RI 5951 Chemical Reactions In The Electric Arc: Reactive Metal Carbides - Summary

    By E. D. Calvert

    This Bureau of Mines report discusses the electric-arc reduction of zirconium and hafnium oxides with carbon yielding a metal-metallic carbide mixture. The carbon to oxide ratio in the feed determines

    Jan 1, 1962

  • NIOSH
    RI 7939 Seepage-Environmental Analysis of the Slime Zone of a Tailings Pond

    By C. Daniel Kealy

    Dissolved and suspended solids are present in the free water of tailings ponds. This Bureau of Mines study was designed to identify the influences of the slime zone in preventing these solids from rea

    Jan 1, 1974

  • NIOSH
    OFR-127-85 Through-The-Earth Electromagnetic Trapped Miner Location Systems. A Review (0167947a-011e-41eb-b37b-cd1aaf8b20c4)

    By Walter E. Pittman

    In its role of providing technical assistance to the mining industry, the Bureau of Mines' Tuscaloosa Research Center has conducted research to develop trapped miner location systems which would

    Jan 1, 1982

  • NIOSH
    Application Of The Q-System To Australian Underground Metal Mines

    By Max F. Lee, Warren A. Peck

    The applicability of the Q-system [Barton et al. 1974] to Australian underground metal mines is discussed with reference to two common design issues: ground support for horizontal mine development, an

    Jan 5, 2007

  • NIOSH
    IC 7011 Fatal And Nonfatal Electrical Accidents In Coal Mines ? Introduction

    By L. C. IlsLey

    Many accidents rightly classifiable as electrically caused are not so classified for the reason that in numerous accidents the part that electricity played in causing the fatality is only suspected. F

    Jan 1, 1938

  • NIOSH
    OFR-79-84 Development Of A Hydride Fuel System For Underground Mine Use - Hydride Fuel System For Underground Mine Use Development And Testing

    By Ned Baker

    Details are given of a Hydride Fuel System to provide 5 kg of HZ to fuel a Caterpillar 3304 engine previously modified to operate on hydrogen fuel and intended to power an underground mining vehicle.

    Jan 1, 1983

  • NIOSH
    RI 5997 Methods For Producing Alumina From Clay - An Evaluation Of The Sulfurous Acid-Caustic Purification Process - Summary

    By Frank A. Peters

    This evaluation of the sulfurous acid process for the production of metallurgical-grade alumina is the first of a series concerning various known methods of extracting alumina from low-grade aluminous

    Jan 1, 1962

  • NIOSH
    OFR-3(3)-81 Oil Shale Mining Environmental Research Program Plan - Low Funding Level - Vol. III

    By F. G. Scott

    This document is a proposed program plan for mining environmental research to be conducted by the U.S. Bureau of Mines in support of industrial oil shale mining and processing. This program plan is on

    Jan 1, 1980

  • NIOSH
    IC 9136 Survey Of Nuisance And Biologically Active Dusts In Metal And Nonmetal Mines

    By P. J. Watson

    The objective of this study was to prioritize the potential risks nuisance and biologically active dusts and fumes present in metal and nonmetal mines. This was accomplished by ranking numerical value

    Jan 1, 1987

  • NIOSH
    RI 3548 Activated Carbon From Coal Refuse For Water Purification ? Introduction

    By S. J. Broderick

    [Xuge d-mp heap co:lt:.ini9: tilcu?:na3s of tons of cad ~eP~se 2r3 a failiar sight in coal-mininc regior@:. T5ey reprecei~t considergole economic 1083, are very l.u.,si~hC,ly, ?:ld t?ke un m-lch vaL-x

    Jan 1, 1941

  • NIOSH
    RI 6063 Metallurgical Investigations Of Philippine Nickeliferous Ores ? Summary

    By L. H. Banning

    This investigation was undertaken to obtain basic information necessary for the design and operation of a plant for recovering metallic values from nickeliferous laterite and serpentine of the Philipp

    Jan 1, 1962

  • NIOSH
    RI 8485 Structure Response and Damage Produced by Airblast From Surface Mining

    By David E. Siskind

    The Bureau of Mines studied airblast from surface mining to assess its damage and annoyance potential, and to determine safe levels and appropriate measurement techniques. Research results obtained fr

    Jan 1, 1980

  • NIOSH
    RI 9071 - Capability Evaluation of the Radial-Axial Splitter

    By S. J. Anderson

    To deftne the capabilities of a nonexplosive excavation concept, the Bureau of Mines conducted reduced-scale laboratory tests of a mechanical excavation tool called a rock splitter. The splitter inve

    Jan 1, 1987

  • NIOSH
    Development Of Multiple Regression Functions For Performance Prediction Of Gob Gas Ventholes For Sealed And Active Longwall Mines

    By Heather N. Dougherty

    In the absence of values for each influencing parameter and a known relationship of input-output space, novel approaches should be implemented as proxy solutions to mathematically complicated problems

    Jan 1, 2010

  • NIOSH
    IC 7014 Multiple-Shift Mechanical Mining In Some Bituminous Coal Mines. Progress Report 1 ? Introduction

    By Albert L. Toenges

    The purpose of this paper is to describe some of the methods and practices of mining coal mechanically where more than one shift is worked, with the view of determining the advantages and disadvantage

    Jan 1, 1938

  • NIOSH
    IC 9221 Safety Evaluations Of Longwall Roof Supports

    By Thomas M. Barczak

    State-of-the-art longwall roof supports provide effective strata control, but failures of these support systems still occur. To identify failure mechanisms and the impact these failures have on the sa

    Jan 1, 1989

  • NIOSH
    RI 3429 Cooperative Fuel Research Motor-Gasoline Survey, Summer 1938 ? Introduction (1755a138-dac6-483a-b929-64b5978b329e)

    This is the sixth in a series of reports on properties of commercial motor fuels, made in accordance with a cooperative agreement between the Cooperative Fuel Research (C.F.R.) Committee and the Burea

    Jan 1, 1938

  • NIOSH
    IC 6861 Accident Experience And Cost In California Metal Mines ? Introduction

    By S. H. Ash

    For several years considerable activity has been devoted to economic and social factors affecting California metal-mining operations as they relate to accidents and their cost. The reason for this int

    Jan 1, 1935