Results 31 - 40 of 201

• 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.
• Measurement of the Influence of Antennas on Radio Signal Propagation in Underground Mines and Tunnels
  10/4/2019 - Peer reviewed journal articles
  This paper reports the influence of antennas on radio signal propagation in tunnels and underground mines.
• Ground Response to High Horizontal Stresses During Longwall Retreat and its Implications for Longwall Headgate Support
  2/19/2019 - Peer reviewed journal articles
  An article discussing roof support requirements in the longwall headgate under high horizontal stress in regard to the pattern of supplemental cable bolts and the critical locations where additional supplemental support is necessary.
• 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.
• Deep Cover Bleeder Entry Performance and Support Loading: A Case Study
  1/24/2019 - Peer reviewed journal articles
  An article examining rear abutment extent and loading, along with how well current modeling procedures calculate those values.
• Experimental Study on the Confinement-Dependent Characteristics of a Utah Coal Considering the Anisotropy by Cleats
  5/1/2018 - Peer reviewed journal articles
  A study in which laboratory testing was used to identify the engineering characteristics and brittleness of coal samples.
• Analysis of Gob Gas Venthole Production Performances for Strata Gas Control in Longwall Mining
  3/1/2018 - Peer reviewed journal articles
  An article about a study to analyze production performances of gas gov ventholes drilled over a longwall panel as a methane control measure.
• Ray Tracing and Modal Methods for Modeling Radio Propagation in Tunnels With Rough Walls
  5/1/2017 - Peer reviewed journal articles
  An article that discusses how wall roughness affects radio propagation in tunnels, and presents a unified ray tracing and modal method for modeling radio propagation in tunnels with rough walls.
• Design Concerns of Room and Pillar Retreat Panels
  1/1/2017 - Peer reviewed journal articles
  A paper detailing observations made in four consecutive room and pillar retreat panels and the data collected from an instrumentation site during retreat mining.
• Brody Mine Accident Highlights Need for Retreat Mining Safety
  10/22/2016 - News articles
  A short feature story describing NIOSH products on retreat mining.