天体引潮力对煤与瓦斯突出的作用机制

doi:10.13722/j.cnki.jrme.2014.0826

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Abstract Theoretical analysis，numerical simulation and statistical analysis are applied to study the relationship between coal-gas outburst and astro-tidal-triggering based on the Mohr-Coulomb criterion and Newton's second law from the astro-tidal-triggering influence on geological disasters. Results show that there is a certain correlation between coal-gas outburst and astro-tidal-triggering and the tidal force plays a certain role in promoting the coal-gas outburst. Coal-gas outburst and astro-tidal-triggering both exhibit a periodicity in time and regional difference in space. Coal-gas outburst occurs at high frequencies under the strongest tidal force，while it occurs at low frequencies under the role of the weakest tidal force. Numerical simulation results verified the correctness of the tidal force?s role in promoting the coal-gas outburst. A new research direction is provided to further understand the mechanism of coal and gas outburst.

Key words： mining engineering astro-tidal-triggering coal and gas outburst temporal and spatial distribution Mohr-Coulomb criterion Newton,s second law

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2014.0826 OR http://www.rockmech.org/EN/Y2015/V34/Is1/3005

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