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- Research methods and measures:
- Numerical modeling
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Results 11 - 20 of 97
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12/1/2007 - Peer reviewed journal articlesComputational 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.
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6/1/2006 - Conference papersNIOSH 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.
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6/1/2004 - Conference papersThe 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.
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7/1/2001 - Conference papersOutlines 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.
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Exploration of Limestone Pillar Stability in Multiple-level Mining Conditions Using Numerical Models5/17/2023 - Peer reviewed journal articlesA study using FLAC3D models to investigate factors that control pillar stability in multiple-level conditions.
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12/17/2021 - Contracts and cooperative agreementsA capacity-building contract focused on coal dust mitigation utilizing a novel scrubber and numerical modeling.
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9/18/2020 - Contracts and cooperative agreementsA 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.
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9/18/2020 - Contracts and cooperative agreementsA capacity-building contract with the Colorado School of Mines to develope improvements in ground characterization, monitoring, analysis, and design approaches.
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3/1/2020 - Peer reviewed journal articlesAn 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.
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1/1/2020 - Peer reviewed journal articlesThe 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.
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Content source: National Institute for Occupational Safety and Health, Mining Program