Print
Search
41 records found.
Using the Internet to Train Emergency Command Center Personnel
Well-prepared personnel and an effective emergency response plan are essential components of any emergency command center. The National Institute for Occupational Safety and Health (NIOSH) is developing an Internet-based, computer simulation training package for the mining industry Contingencies, emergency, crisis,... Read more
Hazards of Acetylene Gas
Acetylene is the most common gas used for fueling cutting torches. When mixed with pure oxygen in a cutting torch assembly, an acetylene flame can reach a temperature of 5700 degrees F (3149 degrees C) ... Read more
SELECTED HEALTH ISSUES IN MINING
Data on health-related illnesses and disease in the mining industry are scarce, and information on rates and costs is not readily available. Substantial amounts of research are being directed to addressing these issues, including work at the National Institute for... Read more
Evaluating Longwall Dust Sources and Controls
NIOSH is conducting full-scale laboratory studies to evaluate dust liberation and control for dust generated by shearer cutting ... Read more
Evaluation of Two-Phase Spray System for Airborne Dust Control in a Longwall Gallery
The increased effectiveness of a two-phase spray system (TPSS) over a single-phase system (SPSS) for dust suppression is reported in several laboratory studies ... Read more
Impact of Control Parameters on Shearer-Generated Dust Levels
Previous research on continuous mining operations has shown that significant interactions exist between dust-control parameter application and the resulting respirable dust levels. However, simply increasing the level of the controls does not guarantee a reduction in respirable dust levels. Full-scale... Read more
NIOSH Research for Controlling Respirable Dust and Methane Gas on Continuous Miner Faces
The importance of controlling respirable dust and methane gas levels in underground coal mining cannot be underestimated. This paper reviews practical applications of water sprays and dust scrubbers to control respirable dust and methane gas on continuous miner faces ... Read more
NIOSH Ventilation Research Addressing Diesel Emissions and Other Air Quality Issues in Nonmetal Mines
The importance of controlling respirable dust and methane gas levels in underground coal mining cannot be underestimated. This paper reviews practical applications of water sprays and dust scrubbers to control respirable dust and methane gas on continuous miner faces ... Read more
Reducing Worker Exposure To Dust Generated During Longwall Mining
Longwall mining equipment has improved dramatically over the last 15 years. Although significant gains in longwall dust control have been made, they have been challenged by significant increases in coal extraction rates resulting in more dust being generated ... Read more
Research by NIOSH for Controlling Respirable Dust and Methane Gas on Continuous Miner Faces
The importance of controlling respirable dust and methane gas levels in underground coal mining cannot be underestimated. While respirable dust can significantly affect the occupational health of underground coal miner, methane gas accumulations pose significant safety concerns for these same... Read more
Selected Health Issues in Mining
This paper briefly discusses the current status of some miner health-related issues, including those involving coal dust, silica dust, diesel particulate matter, asbestos, noise, lead, welding fumes, and skin disorders, as well as research and other activities aimed at protecting... Read more
Silica Dust Sources in Underground Metal/Nonmetal Mines - Two Case Studies
The ultimate goal of this research is to develop control technologies to reduce worker exposure to respirable silica dust. Dust surveys were conducted in an underground limestone and gold mine to investigate silica dust sources, generation levels, and controls being... Read more
Ignition of Methane-Air Mixtures by Laser Heated Small Particles
Optical technologies have progressed rapidly in the past 15 years. NIOSH is conducting a study to help provide a scientific basis for developing appropriate safety guidelines for optical equipment in underground coal mines ... Read more
Accuracy and Precision of Microseismic Event Locations in Rock Burst Research Studies
Stability analyses of fractured and faulted rock masses require delineation of the position, extent, and orientation of geologic discontinuities: Recommendations are made for increasing the accuracy and precision of locations of microseismic events detected under similar field conditions ... Read more
Canopy and Base Load Distribution on a Longwall Shield
The U. S. Bureau of Mines report examines the roof and floor contact pressure provided by the interaction of a shield with the surrounding strata. Controlled forces were applied to an 800 ton two-leg shield in the Bureau mine roof... Read more
Deep Cover Pillar Extraction in the U.S. Coalfields
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 Mine Safety and Health Administration (MSHA) statistics... Read more
Evaluation of Pillar Recovery in Southern West Virginia
Pillar recovery continues to be a significant ground control hazard. During the past decade, 10 miners were killed during pillar extraction operations in southern West Virginia. Studies conducted during the past decade have identified a number of Risk Factors that... Read more
Geophysical Methods to Detect Stress in Underground Mines
Highly stressed rock in stopes continues to be a primary safety risk for miners in underground mines because this condition can result in failures of ground that lead to both injuries and death. Personnel from the Spokane Research Laboratory of... Read more
Investigation of a Rock-Burst Site, Sunshine Mine, Kellogg, Idaho
Rock masses in deep-level mines are subject to high stresses, which can result in unexpected failure of rock into mined-out openings. Historically, various independent methods have been used to discern the causes of rock bursts and to evaluate stress conditions... Read more
Investigation of Electromagnetic Emissions in a Deep Underground Mine
Highly stressed rock in stopes continues to be a primary safety risk for miners in underground mines because it can result in failures of ground that lead to both injuries and death. Spokane Research Laboratory personnel investigated electromagnetic (EM) emissions... Read more
Recent Keywords