Results 31 - 40 of 96

• Reducing Control Selection Errors Associated with Underground Bolting Equipment
  7/1/2010 - Peer reviewed journal articles
  The aims of this research were to determine the effectiveness of arbitrary shape coding in reducing selection error rates in a virtual analogy of roof-bolting and whether any advantages exist for mirror or place layouts for dual control situations.
• Ground and Standing Support Interaction in Tailgates of Western U.S.Longwall Mines Used in the Development of a Design Methodology Based on the Ground Reaction Curve
  7/1/2010 - Conference papers
  Instrumented test sites were installed in the tailgates of two western longwall operations; results of the support performance and ground reaction are presented in terms of developed support loads and displacements and tailgate entry convergence.
• A Century of Bureau of Mines/NIOSH Explosives Research
  3/1/2010 - Conference papers
  The authors' goal is to summarize the totality of the USBM's explosives and blasting research.
• High Resolution Seismic Refraction Tomography for Determining Depth of Blast Induced Damage in a Mine Wall
  8/1/2009 - Peer reviewed journal articles
  High resolution seismic refraction tomography has proved to be a useful tool to effectively estimate depth of blast induced damage in a mine face.
• A Hydrodynamics-Based Approach for Predicting the Blast Damage Zone in Drifting as Demonstrated Using Concrete Block Data
  8/1/2009 - Peer reviewed journal articles
  This paper presents a blast design technique based on a hydrodynamic method and introduces modifications to account for different explosives from those used in a calibration test.
• Workplace Solutions: Reducing Hazardous Dust Exposure When Rock Drilling During Construction
  4/1/2009 - NIOSH/USBM numbered publications
  NIOSH found that drill dust could be decreased by using wet or dry dust reduction engineering controls, enclosed cabs, and implementing a dust control program.
• Evaluation of Sequential Extraction Procedures for Soluble and Insoluble Hexavalent Chromium Compounds in Workplace Air Samples
  2/1/2009 - Peer reviewed journal articles
  The results of this study by NIOSH have served to provide performance data in support of the procedures described in the international standard methods, for which such results were previously unavailable in the peer-reviewed literature.
• Summary of NIOSH Research Completed on Dust Control Methods for the Surface and Underground Drilling
  12/1/2008 - Peer reviewed journal articles
  This paper summarizes the results of research that has been done on respirable dust control for surface mine blasthole drilling operations.
• Impact of Deformable Materials and Convergence on the Transverse Load Capacity of Mine Ventilation Stoppings
  6/1/2008 - Conference papers
  This paper presents the results of a NIOSH parametric study that quantifies the impact of various deformable materials in block stopping construction under transverse load conditions.
• A Case Study Examination of Two Blast Rounds at a Nevada Gold Mine
  1/1/2008 - Conference papers
  NIOSH researchers collected basic data from two blast rounds at the SSX-Steer Mine as a component of a larger study on controlled blasting, the goal of which is to reduce injuries from falling rocks in underground mines.