Results 41 - 50 of 146

• Analysis of the Design and Performance Characteristics of Pumpable Roof Supports
  8/1/2017 - Peer reviewed journal articles
  This paper evaluates the impact of various pumpable roof support design parameters by examining full-scale performance tests conducted using the NIOSH Mine Roof Simulator (MRS) as part of manufacturers’ developmental and quality control testing.
• Support Design Procedures for Difficult Ground Conditions
  10/22/2016 - Research projects
  A project to develop engineering guidelines for support design that will reduce groundfall fatalities under supported roof in underground coal mines.
• Mine Roof Simulator (MRS) Laboratory
  10/22/2016 - Research projects
  A project to utilize the capabilities of the Mine Roof Simulator (MRS) Laboratory to test underground roof support and ventilation structures and apply these results to engineer safer products and applications.
• Empirical Guidelines for Longwall Ground Control Design
  10/22/2016 - Research projects
  A project to update the database of case histories upon which the Analysis of Longwall Pillar Stability (ALPS) software bases its recommended stability factors.
• Development of Guidelines for the Design of Support Systems to Manage Coal Mine Rib Hazards
  10/22/2016 - Research projects
  A project to develop guidelines for determining the appropriate level of support and design methods for support systems to minimize the risk and severity of injuries to miners from rib falls in underground coal mines.
• Building Capacity and Enhancing Ground Control Safety through Improvement and Extension of the LaModel Program
  7/16/2016 - Contracts and cooperative agreements
  A capacity-building contract to enhance ground control safety and produce qualified MS and PhD graduates with ground control expertise through improving and extending the LaModel program.
• Vertical Load Capacities of Roof Truss Cross Members
  5/1/2016 - Peer reviewed journal articles
  An article describing laboratory tests that were conducted to determine the vertical load capacity and deflection of three different types of cross members used in the trusses of coal mine roof support.
• Volumetric Measurement of Rock Movement Using Photogrammetry
  1/1/2016 - Peer reviewed journal articles
  An article describing two ways photogrammetric techniques are being used for rock mass and support monitoring.
• Analysis of the Current Rib Support Practices and Techniques in U.S. Coal Mines
  1/1/2016 - Peer reviewed journal articles
  This article by NIOSH analyzes the current practices of rib control in U.S. coal mines. Twenty underground coal mines were studied representing various coal basins, coal seams, geology, loading conditions, and rib control strategies.
• Ground Control Research: Considering Local Geology to Improve Longwall Pillar Stability
  11/3/2015 - Unpublished documents and reports
  A description of two Ground Control Program projects that aim to enhance mine safety through improved longwall pillar designs that consider a mine’s local geology.