八连城煤矿19号煤层瓦斯地质规律研究

为给防治八连城煤矿瓦斯灾害提供依据,根据该矿实测的19号煤层瓦斯含量、瓦斯压力等数据,结合矿井地质条件,分析了其瓦斯地质规律。运用多元回归分析法预测瓦斯含量,并对其煤与瓦斯突出危险性进行了预测。结果表明：19号煤层顶底板围岩岩性致密,透气性差,封闭条件良好。岩浆岩侵入区煤层瓦斯含量增大,并且随埋藏深度增加而增大。基于不满足单项指标的要求,19号煤层不具有煤与瓦斯突出的危险性,认为岩浆岩侵入区是瓦斯治理的重点区域。

Study on Gas Geological Law of No.19 Seam in Baliancheng Mine

In order to prevent and control the gas disaster,according to the gas content,gas pressure and other data measured from No.19 seam,in combination with the mine geological conditions,the gas geological law was analyzed.The multi element regression analysis method was applied to predict the gas content and predict the danger of the coal and gas outburst.The result showed that the surrounding rock lithology of the roof and floor in No.19 seam was compact,the permeability was poor and the sealed condition was excellent.The gas content of the seam in a magmatic rock intrusion area would be increased and increased with the depth increased.Due not to meet the requirement of a single item index,No.19 seam would not have the danger of the coal and gas outburst and the key area of the gas control would be the magmatic rock intrusion area.