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通过瓦斯地质分析,提出煤层围岩透气性、断层复杂程度、褶皱变形复杂程度、煤层倾角复杂程度、顶板岩性、构造煤发育程度的量化方法和计算公式。采用因子分析方法对陶二煤矿2煤层影响瓦斯涌出的瓦斯地质指标进行筛选,确定出3个主因子,建立了瓦斯涌出量预测模型,经过理论和实践验证,模型精度较高,可以用于未采区瓦斯涌出预测。
Based on the gas geological analysis, the quantitative method and formula for the permeability of coal seam surrounding rock, the complexity of faults, the complexity of fold deformation, the complexity of coal seam dip, the roof lithology and the development degree of tectonic coal are proposed. The factor analysis method was used to screen the gas geology index of No.2 seam in Tao II coal mine which affects the gas emission. Three main factors were identified and the gas emission prediction model was established. After theoretical and practical verification, the accuracy of the model can be used Methane emission prediction in non-mining area.