Results 21 - 30 of 99

• Numerical Simulation of Roof Cavings in Several Kuzbass Mines Using Finite-difference Continuum Damage Mechanics Approach
  3/1/2020 - Peer reviewed journal articles
  An article describing how the finite-difference method and the continuum damage mechanics (CDM) approach were applied to simulate the stress-strain evolution of a rock mass with an underground opening during coal extraction.
• Influence of Longwall Mining on the Stability of Gas Wells in Chain Pillars
  1/1/2020 - Peer reviewed journal articles
  The article presents seven cases of conventional gas wells within chain pillars and discusses how numerical modeling can provide a more quantifiable approach to assess the stability of the gas wells.
• Overview of Current US Longwall Gateroad Support Practices: An Update
  12/1/2019 - Peer reviewed journal articles
  An overview of recent trends in US longwall mining, with an emphasis on accident and injury trends, as well as support systems and ground conditions.
• Evaluating the Stability of Shale Gas Wells in Longwall Barrier Pillars
  11/1/2019 - Non-peer reviewed journal articles
  An article discussing NIOSH's research on gas well stability in longwall pillars.
• Investigating the Impact of Caving on Longwall Mine Ventilation Using Scaled Physical Modeling
  6/10/2019 - Peer reviewed journal articles
  An article discussing a study conducted in NIOSH's Longwall Instrumented Aerodynamic Model (LIAM) to investigate the gob-face interaction, airflow patterns within the gob, and airflow dynamics on the face for varying roof caving characteristics.
• Analysis of Global and Local Stress Changes in a Longwall Gateroad
  2/5/2019 - Peer reviewed journal articles
  An analysis of a numerical-model-based approach for estimating the changes in both the horizontal and vertical loading conditions induced by an approaching longwall face.
• Studying Longwall Ventilation with Physical Modeling
  7/1/2018 - Non-peer reviewed journal articles
  An article discussing the development, applications and findings from NIOSH's Longwall Instrumented Aerodynamic Model (LIAM).
• Methane Emissions and Airflow Patterns on a Longwall Face: Potential Influences from Longwall Gob Permeability Distributions on a Bleederless Longwall Panel
  2/1/2018 - Peer reviewed journal articles
  An article evaluating longwall face ventilation practices at a mine study site.
• NIOSH Mining Webinar: Improvement of Longwall Ventilation
  5/12/2017 - Calls for participation
  Plan to attend this important webinar on longwall ventilation and how to improve conditions for miners, Sept. 21, 2017.
• Controlling Respirable Dust in Coal Mining Operations
  2/22/2017 - Research projects
  A project to identify and develop improved respirable dust controls for coal mines and facilitate their implementation to reduce the dust exposures of mine workers.