平顶山十矿煤与瓦斯突出地质因素分析

随着矿井开采深度的增加,煤与瓦斯突出已愈来愈成为影响和制约生产的重要因素.为确保煤矿安全生产,作者对平顶山十矿影响突出煤层瓦斯赋存和突出的地质构造、煤层厚度的变化、煤体结构、埋藏深度等地质因素进行了分析研究,认为:地质条件对煤层瓦斯体积含量和煤与瓦斯突出的分区分带具有明显的控制作用;井田内厚度小于2 m的单一煤层一般不具突出危险性,但随着开采深度的增加有可能发生突出;戊9-10煤层分叉合并线附近为煤与瓦斯突出带,其他煤层分叉合并线附近可能形成煤与瓦斯突出危险带.

Analysis of the Geological Factors of Coal and Gas Outburst in Pingdingshan Tenth Coal Mine

Along with the increasing depth of mine exploitation,coal and gas outburst become a significant factor,which can effect and restrict mining.To ensure safe production in coal mine,the author analyzes geological factors of Pingdingshan tenth coal mine,which effect the gas source and outburst of outburst coal bed,such as geological structure,change of the coal layer's thickness,coal body structure,bury depth and so on.The result shows geological condition plays a distinct role in controlling the content of gas in coal bed,distribution belts and zones of gas outburst;Single coal bed whose thickness is less than 2 meters in the mine doesn't have the danger of outburst,yet it may outburst along with the increasing depth of exploitation;The neighborhood of branching mergence line of Wu 9-10 coal bed is the belt of gas outburst and the counterparts of other coal beds may be the dangerous belts of gas outburst.