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Showing 46181 - 46200 of 82972 results
  • Overview of Ground Control Research for Underground Coal Mines in the United States
    Overview of Ground Control Research for Underground Coal Mines in the United States
    Mark, Christopher
    2001/01/01 | Mining Publications
    Underground coal mining continues to evolve in the U.S., and more reserves are being mined under deeper cover, with worse roof, or with interactions from previous workings. At the same time, the mining community is responding to higher safety standards and intense competitive pressures. The need for effective ground control design has never been gr ...
    Public Domain
  • Flyrock Issues in Blasting 2001
    Flyrock Issues in Blasting [2001]
    Rehak, Timothy R. ;
    Bajpayee, T. S.
    2001/01/01 | Mining Publications
    Blasting operations are an essential element in the recovery of our Nation's mineral resources. The mining industry uses billions of pounds of explosives annually. The majority of blasting occurs in surface mining operations. Blasting results in the fragmentation and often the projection of rocks. Frequently, the rocks are thrown beyond the expecte ...
    Public Domain
  • Technology News 484 Devices to Monitor Blind Spots Near Large Haulage Equipment
    Technology News 484: Devices to Monitor Blind Spots Near Large Haulage Equipment
    Ruff, Todd M.
    2001/01/01 | Mining Publications
    During 1999, there were six fatalities in surface mines involving haulage equipment colliding with a smaller vehicle or person, or backing over the edge of a dump point. All of these fatalities can be attributed to the extensive blind areas around large haulage equipment. Researchers at NIOSH are investigating various technologies that can be used ...
    Public Domain
  • The Modified Direct Method A Solution for Obtaining Accurate Coal Desorption Measurements
    The Modified Direct Method: A Solution for Obtaining Accurate Coal Desorption Measurements
    Diamond, William P. ;
    Schatzel, Steven J.
    2001/01/01 | Mining Publications
    The direct method test was developed for general mine safety applications by the U.S. Bureau of Mines in the early 1970's to measure the gas content of coal samples obtained from the relatively shallow depths of eastern U.S. coal mines. Over time, applications for gas content data evolved which required increasingly accurate desorption values. It b ...
    Public Domain
  • Safety Preventing High Insurance Premiums and OntheJob Injuries What Are Poor Health and Safety Habits Costing You
    Safety: Preventing High Insurance Premiums and On-the-Job Injuries: What Are Poor Health and Safety Habits Costing You?
    Matetic, Rudy J. ;
    Ingram, David K.
    2001/01/01 | Mining Publications
    Researchers associated with the National Institute for Occupational Safety and Health (NIOSH), Pittsburgh Research Laboratory (PRL), are investigating injuries (fatal and nonfatal) attributed to water well drillers during well drilling activities. Injury data, obtained from various sources, suggest that many water well drillers are experiencing unn ...
    Public Domain
  • NIOSH Proceedings Best Practices in Hearing Loss Prevention October 28 1999 Detroit Michigan
    NIOSH Proceedings: Best Practices in Hearing Loss Prevention: October 28, 1999: Detroit, Michigan
    National Institute for Occupational Safety and Health
    2001/01/01 | NIOSH Numbered Publications
    Approximately 30 million workers are exposed to hazardous noise on the job. In Michigan, an estimated 86,000 workers have work-related noise-induced hearing loss. Despite the fact that it is 100 percent preventable, loss of hearing is one of the most prevalent occupational diseases in the United States and the second highest self-reported workplace ...
    Public Domain
  • Assessing and Monitoring Open Pit Mine Highwalls
    Assessing and Monitoring Open Pit Mine Highwalls
    Girard, Jami M.
    2001/01/01 | Mining Publications
    Slope stability accidents are one of the leading causes of fatalities at U.S. surface mining operations. The Spokane Research Laboratory of the National Institute for Occupational Safety and Health (NIOSH) is currently conducting research to reduce the fatalities associated with slope failures and other unexpected failures of ground. The purpose of ...
    Public Domain
  • Field Evaluation of Mobile Roof Support Technologies 2001
    Field Evaluation of Mobile Roof Support Technologies [2001]
    Maleki, Hamid N. ;
    Owens, John K.
    2001/01/01 | Mining Publications
    This study presents a historic overview of the role of mobile roof support (MRS) technologies in improving stability and worker safety and presents the results of recent field evaluations of the MRS load rate monitoring device and other remote deformation-monitoring techniques. Field studies were implemented at two sites in cooperation among resear ...
    Public Domain
  • Failure Characteristics of Roof Falls at an Underground Stone Mine in Southwestern Pennsylvania
    Failure Characteristics of Roof Falls at an Underground Stone Mine in Southwestern Pennsylvania
    Iannacchione, Anthony T. ;
    Marshall, Thomas E.
    2001/01/01 | Mining Publications
    The location and time of 2,007 microseismic emissions from a limestone mine in southwestern Pennsylvania were compared with the development of mine faces and the characteristics of the mine layout. Based on analyses of these results, the occurrence of roof failure zones appears to be associated with certain characteristics of the mine plan. It was ...
    Public Domain
  • Simplified Hyperspectral Imaging for Improved Geologic Mapping of Mine Slopes
    Simplified Hyperspectral Imaging for Improved Geologic Mapping of Mine Slopes
    McHugh, Edward L. ;
    Girard, Jami M.
    2001/01/01 | Mining Publications
    A prototype portable hyperspectral imaging system that operates in the visible and near-infrared ranges of the electromagnetic spectrum was field-tested at an open-pit mine. The tests were sponsored by the Spokane Research Laboratory, National Institute for Occupational Safety and Health, as part of an investigation into remote sensing technologies ...
    Public Domain
  • Size Distribution and Deposition in Human Respiratory Tract Particle Mass and Number
    Size Distribution and Deposition in Human Respiratory Tract: Particle Mass and Number
    Bugarski, Aleksandar D. ;
    Gautam, Mridul
    2001/01/01 | Mining Publications
    Objectives: To determine the regional deposition of particulate matter in human lungs for a variety of steady-state engine operating conditions, fuel formulations and combinations of after treatment devices, and to characterize the size, distribution and mass emission rates of particulate matter emissions from off-road and on-highway heavy-duty veh ...
    Public Domain
  • Responders to Underground Mine Fires 2001
    Responders to Underground Mine Fires [2001]
    Conti, Ronald S.
    2001/01/01 | Mining Publications
    Fire is a major concern for those who work in underground mines. A mine fire can occur at anytime and often results in a partial or total evacuation of mine personnel and could result in the loss of lives. Therefore, having a workforce that is well trained to prevent, detect, and fight a fire is important. This paper focuses on responders' prepared ...
    Public Domain
  • Reducing Worker Exposure to Dust Generated During Longwall Mining
    Reducing Worker Exposure to Dust Generated During Longwall Mining
    Rider, James P. ;
    Colinet, Jay F.
    2001/01/01 | Mining Publications
    Average production from longwall mining operations in the United States has risen from approximately 800 tons per shift in 1980 to over 4,600 metric tons per shift in 1999. Such a large increase in production has the potential to generate significantly more dust. Previous NIOSH research has shown that, on average, respirable dust levels generated b ...
  • Reducing Materials Handling Injuries in Underground Mines
    Reducing Materials Handling Injuries in Underground Mines
    Patton, Philip W. ;
    Stewart, Bill M.
    2001/01/01 | Mining Publications
    Back injuries from handling materials in underground mines continue to be a major safety problem. In spite of the ingenuity of many people and the development of numerous mechanized aids, the number of materials-handling injuries remains second only to the number of roof fall injuries in underground coal mines. Relocation and repositioning of elect ...
    Public Domain
  • Random Motion Capture Model for Studying Events Between a Machine and Its Operator
    Random Motion Capture Model for Studying Events Between a Machine and Its Operator
    Ambrose, Dean H.
    2001/01/01 | Mining Publications
    This paper presents a technique for representing and analyzing random motions and hazardous events in a computer simulated three-dimensional workplace, providing machine designers and safety analysts with a new technique to evaluate ways to reduce operator-machine interaction hazards. Technical data in this paper is based upon a project striving to ...
    Public Domain
  • Geomechanics of Large Stone Structures A Case History from the Washington National Cathedral
    Geomechanics of Large Stone Structures: A Case History from the Washington National Cathedral
    Mark, R. ;
    Richards, R. Jr.
    2001/01/01 | Mining Publications
    The Washington National Cathedral is one of the largest masonry structures in the USA, and like many of its European Gothic counterparts, it required nearly a century to construct. The design was altered during this period, resulting in greater loadings than were originally anticipated on the soil beneath the foundation. When signs of continuing di ...
    Public Domain
  • Updating the NIOSH Support Technology Optimization Program STOP With New Support Technologies and Additional Design Features
    Updating the NIOSH Support Technology Optimization Program (STOP) With New Support Technologies and Additional Design Features
    Barczak, Thomas M.
    2001/01/01 | Mining Publications
    The initial Support Technology Optimization Program (STOP), Version 1.0, was released at the 19th Ground Control Conference. This original program has since been updated to Version 2.3 which was released in May, 2001. This paper describes the additional features of Version 2.3, focusing primarily on the following three aspects: (1) including uncont ...
    Public Domain
  • Verification and Validation of Roof Bolter Simulation Models for Studying Events Between a Machine and Its Operator
    Verification and Validation of Roof Bolter Simulation Models for Studying Events Between a Machine and Its Operator
    Bartels, John R. ;
    Ambrose, Dean H.
    2001/01/01 | Mining Publications
    This paper presents the results of a study to verify and validate a computer model that represents and analyzes motions and hazardous events in a simulated threedimensional workplace. The purpose of the computer model is to support research that is investigating the safe speed range for the vertical movement of roof bolter boom arms to reduce worke ...
    Public Domain
  • Test Report on the MachineMounted Continuous Respirable Dust Monitor
    Test Report on the Machine-Mounted Continuous Respirable Dust Monitor
    Kissell, Fred N. ;
    Thimons, Edward D.
    2001/01/01 | Mining Publications
    The machine-mounted continuous respirable dust montior (MMCRDM) is a fixed-location area sampling device developed for possible use at the working face of an underground coal mine. This device, based on proprietary technology known as the tapered element oscillating microbalance, has evolved over the past eight years through a cooperative effort of ...
    Public Domain
  • The Evolving Mining Workforce Training Issues 2001
    The Evolving Mining Workforce: Training Issues [2001]
    Kowalski, Kathleen M. ;
    Vaught, Charles
    2001/01/01 | Mining Publications
    Safety and health professionals from all sectors of industry recognize that training is a critical element of an effective safety and health program. A major concern in the mining industry today is how to train the present aging workforce, plus the expected influx of new and less experienced miners and mine operators as the cohort of older workers ...
    Public Domain
46181 - 46200 / 82972