崔庄矿煤与瓦斯突出成因分析及防治对策研究

Study on the genetic analysis and prevention of gas dynamic phenomenon in Cuizhuang coal mine

针对崔庄煤矿8#煤层发生的煤与瓦斯突出现象,分析了煤层的赋存特征和地质状况,指出了该处瓦斯突出发生的根本原因在于:一是火成岩侵入产生的封闭结构,很好地保存了该区域内煤层生成的瓦斯,从而造成了该区域内的瓦斯含量高、压力大;二是断层、褶曲等地质构造既造成了应力集中,同时也破坏了煤层的结构,降低了煤层本身的抵抗能力。针对崔庄矿8#煤层突出的原因,提出了相应的对策措施。

Aiming at gas and coal outburst occurring in 8^th coal seam at Cuizhuang mine, the analysis of characteristic and geological conditions about coal bed is carried on, and then the author points out the fundamental reasons of gas outburst. On the one hand, the closed structure from igneous rock＇s invasion well preserved coal-generated gas in this region, accordingly resulting in its high gas content, pressure; on the other hand, geological structures, such as fault, fold, etc, not only lead to stress concentration, but also damage the structure of coal, reducing itself resistance. Finally the control measures are put forward based on analyzing the reasons of gas and coal outburst of 8^th coal seam.