Results 11 - 20 of 97

• Computational Fluid Dynamics Modeling of Spontaneous Heating in Longwall Gob Areas
  12/1/2007 - Peer reviewed journal articles
  Computational Fluid Dynamics simulations were conducted to investigate the spontaneous heating of coals in longwall gob areas with different apparent activation energies and reaction surface areas. The results are reported in this paper.
• Predicting Methane Emissions from Longer Longwall Faces by Analysis of Emission Contributors
  6/1/2006 - Conference papers
  NIOSH conducted a longwall methane emission and mining time study at a Pittsburgh Coalbed mine to predict emissions from a longer face, and developed and applied mathematical formulas and constants to characterize four emission contributors.
• Applications of the Point Estimation Method for Stochastic Rock Slope Engineering
  6/1/2004 - Conference papers
  The point estimation method for the probability of sliding is efficient and expedites slope stability simulation routines in NIOSH software to stochastically describe rock slope behavior and assist engineers in catch bench design for large slopes.
• Rock Damage Characterisation from Microseismic Monitoring
  7/1/2001 - Conference papers
  Outlines the concepts used to correlate rock failure with microseismic events and presents examples of microseismic monitoring together with associated computer modeling of the rock failure from several mine sites.
• Exploration of Limestone Pillar Stability in Multiple-level Mining Conditions Using Numerical Models
  5/17/2023 - Peer reviewed journal articles
  A study using FLAC3D models to investigate factors that control pillar stability in multiple-level conditions.
• Coal Mine Dust Mitigation Through Novel Scrubber Development and Numerical Modeling
  12/17/2021 - Contracts and cooperative agreements
  A capacity-building contract focused on coal dust mitigation utilizing a novel scrubber and numerical modeling.
• MIS Analysis and DINSAR Measurements – Tools for Improving Mine Ground Control Safety
  9/18/2020 - Contracts and cooperative agreements
  A capacity-building contract with the University of Utah to improve seismic coverage, instrument a yield pillar, develop an extended numerical model, and evaluate statistical methods.
• Mitigation of Groundfall Hazards Through Integration of Novel Field and Numerical Techniques
  9/18/2020 - Contracts and cooperative agreements
  A capacity-building contract with the Colorado School of Mines to develope improvements in ground characterization, monitoring, analysis, and design approaches.
• 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.