Results 11 - 20 of 28

• Mitigation of Groundfall Hazards Through Integration of Novel Field and Numerical Techniques
  9/18/2020 - Contracts and cooperative agreements
  A capacity-building contract with the Colorado School of Mines to develope improvements in ground characterization, monitoring, analysis, and design approaches.
• Blast Damage Control to Reduce Injuries from Ground Falls in Underground Western U.S. Hard Rock Mines
  2/15/2018 - Research projects
  A project to make available blast damage models and an easy-to-use software tool for mining engineers to use in developing improved blast designs.
• Technology News 541 - Field-Use Early-Strength Shotcrete Test System
  6/1/2011 - Technology News
  To develop a practical method of measuring shotcrete early strength onsite in the first six hours after application using a partial beam test standard, ASTM C 1 16-90.
• Analysis of Applied Forces and Electromyography of Back and Shoulders Muscles When Performing A Simulated Hand Scaling Task
  5/1/2010 - Peer reviewed journal articles
  This article describes experiments simulating rib scaling from an elevated bucket to examine force generation and electromyographic responses using two types of scaling bars at five target heights ranging from floor level to 176 cm.
• Comparison of the Transverse Load Capacities of Various Block Ventilation Stoppings under Arch Loading Conditions
  6/1/2008 - Conference papers
  This paper compares the transverse load capabilities of several block materials and wall dimensions commonly used in stopping constructions based upon simulated three-hinge, rigid-arch loading tests of half-wall constructions.
• Empirical Design of Span Openings in Weak Rock based upon Support Type Employed
  6/1/2008 - Conference papers
  This work attempts to provide rock mechanic tools that will enable a mine operator to make economic decisions that will also ensure a safe working environment.
• The Effects of Scaling Height and Scaling Bar Design on Applied Forces and Bilateral Muscle Activity of the Back and Shoulders
  10/1/2006 - Conference papers
  Hand scaling is a physically demanding job responsible for overexertion injuries in mining. This experiment studied rib scaling from an elevated bucket to examine force generation capabilities and electromyographic responses to a prying subtask.
• NIOSH Computer Programs for Bench Crest Failure Analysis in Fractured Rock
  3/1/2005 - Conference papers
  A package of bench design programs is being publicly released by the National Institute for Occupational Safety and Health (NIOSH). These programs are designed to provide a probabilistic estimate of the likelihood that various widths of catch bench will...
• Empirical Approaches for Opening Design in Weak Rock Masses
  3/1/2005 - Peer reviewed journal articles
  A major focus of ground control research presently being conducted by the Spokane Research Laboratory of the National Institute for Occupational Safety and Health (NIOSH) is to incorporate weak rock masses (such as are associated with operations in the ...
• Design in Weak Rock Masses: Nevada Underground Mining Operations
  2/1/2005 - Conference papers
  One focus of ground control research at NIOSH is to incorporate data on weak rock masses into existing design relationships, with an emphasis on updating the span design curve for manned entries and the overbreak curve for longhole entries. Both curves ...