英岗岭矿区煤与瓦斯突出的构造特征

    Structural Features of Coal and Gas Outburst in Yinggangling Mining Area

    • 摘要: 为了研究英岗岭矿区煤与瓦斯突出的地质构造特征,在大量统计英岗岭矿区各矿井煤与瓦斯突出事故发生情况和地质构造形态特征的基础上,对矿区瓦斯地质单元进行了划分,分析了矿区典型高突矿井断层和褶皱对煤与瓦斯突出的影响。结果表明:在受大型压扭性断层影响而发育的一系列由小型逆断层组成的叠瓦式构造区域,突出危险性大;褶皱的轴部和整个复向斜的构造收敛区域是煤与瓦斯突出的多发区;小褶皱或小断层发育并伴随煤厚由薄变厚区域易造成煤和瓦斯突出。

       

      Abstract: In order to study geological structure features of coal and gas outburst in Yinggangling Mining Area, on the basis of large number of statistical on coal and gas outburst accidents and geological morphology characteristics in Yinggangling Mining area, the gas geological unit is divided, and the influence of faults and fold in seriously high outburst mine on coal and gas outburst is analyzed. The results show that the imbricate structure area formed by a series of small-scale reverse faults under the large pressure shear faults has great danger of coal and gas outburst; coal and gas outburst always occurs in the area which the fold's shaft portion and structure convergence region of the entire synclinorium; the area that small folds and faults accompanied coal thickness from thin thickening region could easily lead to coal and gas outburst.

       

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