Results 41 - 50 of 348

• Utilizing the 'Advance and Relieve' Method to Reduce Horizontal Stress Affects on the Mine Roof, A Case Study
  1/1/2000 - Conference papers
  The practical application of the "advance and relieve" method is discussed. A trial of the method was conducted for a room and pillar coal operation that was experiencing roof cutters and long running roof falls caused by high horizontal stresses.
• Fire Detection for Conveyor Belt Entries
  1/1/1991 - Reports of Investigations
  This report details the results of a series of large-scale experiments where small coal fires were used to ignite the conveyor belt at specific air velocities, and showed conditions required for early detection of conveyor belt entry fires.
• Mine Slope and Subsidence Monitoring Partnership
  4/11/2024
  A partnership between the NIOSH Mining Program and its stakeholders to investigate the use of existing stability/subsidence monitoring technologies.
• Contact NIOSH Mining
  2/6/2023 - Contact information
  Contact information for the NIOSH Mining office.
• Underground Stone Mine Pillar Design in Challenging Conditions
  1/13/2023 - Research projects
  A project to build the framework for expanding pillar design criteria into challenging environments by undertaking pillar response investigations in representative conditions at case study mine sites.
• Open Pit Highwall Safety
  11/29/2022 - Research projects
  A project to determine the need for improved bench design guidelines and develop slope monitoring radar guidelines for application to open pit mines.
• Highwall Safety: Rockfall Catchment Design and Slope Performance Monitoring at Surface Mines and Quarries
  11/8/2022 - Research projects
  A project to increase the safety of open pit mines through improving upon or developing new rockfall catch bench design guidelines and improving slope performance monitoring capabilities at open pit and quarry sites.
• Development of Engineering Guidelines for Shale Gas Wells Influenced by Longwall Mining
  9/18/2020 - Research projects
  A project to address the lack of information on longwall-induced subsurface strata deformations and stresses and their effect on shale gas well casings by conducting detailed analysis and instrumentation on unconventional shale gas wells.
• Stability Evaluation of Active Gas Wells in Longwall Abutment Pillars
  9/16/2020 - Research projects
  A project to evaluate and quantify subsurface overburden deformations in longwall abutment pillars under shallow overburden depths, and to employ field instrumentation results and 3D numerical modeling to identify critical parameters.
• Transport Model for Shale Gas Well Leakage Through the Surrounding Fractured Zones of a Longwall Mine
  9/1/2020 - Peer reviewed journal articles
  An article presenting an analytical model of gas transport through fractures in a low permeable stratum.