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煤体结构是煤与瓦斯突出的主要因素之一。利用钻孔测井曲线特征并结合矿井地质构造成果,对淮南潘一矿8煤层煤体结构特征及其构造煤发育规律进行了研究。研究表明该矿区8煤层构造煤发育,其厚度大于该煤层厚度20%的点数占一半以上,因其顶、底板围岩封闭性良好,有利于瓦斯聚集,易在采动条件下发生煤与瓦斯突出,确认为该区煤与瓦斯突出的重点煤层。依据瓦斯始突深度、构造煤分层厚度大于0.5m的分布范围、大中型断层位置及矿井突出资料,在F4断层组的两侧分别圈出了煤与瓦斯突出的危险区和威胁区。
Coal structure is one of the main factors of coal and gas outburst. Based on the characteristics of borehole logging curves and the results of mine geological structure, the coal seam structural features of No.8 coal seam and the developmental rules of tectonic coal in Panyi Mines were studied. The research shows that the 8 coal seam tectonic coal development in this mining area has more than half of the points whose thickness is more than 20% of the thickness of the coal seam. Because of the good seal of the top and bottom rock, it is favorable for gas accumulation and coal and gas are easy to occur under mining conditions Outstanding, confirmed as the area of coal and gas outburst of key coal seams. According to the depth of gas burst, the distribution range of tectonic coal over 0.5m, the location of large and medium-sized faults and the outburst of mine information, hazardous and threatening areas of coal and gas outburst are respectively excavated on both sides of F4 fault group.