Analysis on Gas Dynamic Phenomenon Based on Low Critical Value
Abstract：In order to better prevent the low critical value gas dynamic phenomenon causing a danger to the mine safety production,with the statistic analysis on the gas content,gas pressure and gas pressure gradient under the gas geological conditions in the three soft coal field of Yuxi Area,in combination with the analysis proof method of the comprehensive energy presupposition,a study was conducted on the dynamic phenomenon of the low critical value gas.The results showed that when the seam was soft and the coal ruggedness coefficient was low,the seam with low gas content and low gas pressure also would be easy to occur the gas dynamic phenomenon.
Keywords：gas dynamic phenomenongas contentgas pressure gradientseam with soft roofsoft coal and soft floor
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)