君安煤矿煤与瓦斯突出的构造控制研究

Study on tectonic cause of coal and gas outburst in Jun'an Mine

君安煤矿地质构造复杂,煤与瓦斯突出危险性高。本文从断层、褶皱和构造煤等多方面综合分析了地质构造对煤与瓦斯突出的影响,研究结果表明,断层密集区、背斜转折端、煤体结构的破坏均对煤与瓦斯突出的影响较大,煤层围岩的封闭性在一定程度上也为煤与瓦斯突出提供了良好条件,未来采掘中要加强吴一背斜和尚集背斜褶断带的防突工作,7号煤层作为解放层进行开采是降低8号煤层开采突出危险性的有效措施。

The geological structure of Junan Mine was complex,and the danger of coal and gas outburst was high.In this paper,the influence of geological structure on coal and gas outburst was analyzed comprehensively from fault,fold and tectonic coal.The results showed that,fault concentration areas,anticline turning side,the closure of coal seam surrounding rock also provided good conditions for coal and gas outburst to a certain extent,in the future,it was necessary to strengthen the anti-process work of Wuyi anticline and Shangji anticlinal pleated zone.The mining of No.7 coal seam as a liberated layer was an effective measure to reduce the risk of No.8 coal seam mining.