Modify Selection
- Mine locations, excavations, and structures:
- Longwall panels
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Results 1 - 10 of 24
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6/1/2010 - Conference papersIn this NIOSH study, a computational fluid dynamics (CFD) model developed in previous work is used to model the effect of seal leakage on spontaneous heating of coal in longwall gob behind the seal.
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3/1/2010 - Conference papersThe effect of inflow and outflow of gas on the potential spontaneous heating in the gob was investigated using the computational fluid dynamics (CFD) model.
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12/1/2019 - Peer reviewed journal articlesAn article describing a field study conducted to understand the role of gas dynamics in variable broken rock, as well as investigate airflow exchanges between the face and gob.
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10/22/2016 - Research projectsA project to address the paucity of guidance in available literature for assessing the design an underground longwall coal mine for safe ground response to mining with numerical stress analysis tools.
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11/1/2010 - Peer reviewed journal articlesThis paper describes a practical approach for implementing stochastic determination of gob gas ventholes production performances and for generalizing the prediction capability of deterministic models.
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2/1/2010 - Conference papersA discussion of the NIOSH-developed software suite for methane control and prediction (MCP) based on an artificial neural network (ANN) is presented in this paper.
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12/1/2009 - Peer reviewed journal articlesA new approach was tested and it was demonstrated that it could be used for prediction of elastic and shear moduli of coal-measure rocks with reasonable accuracy.
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6/1/2009 - Information CircularsThis paper examines four different stress analysis programs or tools for analyzing stress around a single longwall panel at 610 m (2,000 ft) depth beneath overburden containing some strong strata.
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Critical Review of Numerical Stress Analysis Tools for Deep Coal Longwall Panels Under Strong Strata2/1/2009 - Conference papersThis report describes a study undertaken by NIOSH to more fully appreciate the application of numerical models in support of research on dynamic failure (bumps and bounces) in deep western coal mines.
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6/1/2008 - Peer reviewed journal articlesThis paper describes the 3D velocity tomograms that were generated to image the stress redistribution around an underground coal longwall panel to produce a better understanding of the mechanisms that lead to ground failure, especially rockbursts.
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Content source: National Institute for Occupational Safety and Health, Mining Program