中寨煤矿煤层瓦斯含量影响因素探析

Analysis on influencing factors of coal seam gas content in Zhongzhai coal mine

煤矿瓦斯的析出对矿井安全生产影响极大,通过分析瓦斯含量的影响因素可有助于降低瓦斯事故的发生。通过收集中寨煤矿煤质、瓦斯、钻孔等地勘资料,结合其煤层瓦斯的分布规律,采用多因素综合分析方法分别对瓦斯含量的影响因素进行逐个分析,探讨各因素对煤矿瓦斯含量的影响程度。结果显示煤层中瓦斯含量与地质构造、沉积环境、煤层埋藏深度、煤变质程度及围岩性质等均有一定影响,需全面考虑煤层气瓦斯含量对煤矿生产的影响。研究成果为瓦斯分布含量确定的准确性提供依据,据此可采取措施以加强对瓦斯危险性的防范和管控并避免瓦斯安全事故发生。

Coal mine gas precipitation has great influence on safe production,through the analysis of influencing factors of coal seam gas content,the occurrence of gas accident can be reduced.In the process of research,the coal quality,gas,drilling and other data of Zhongzhai coal mine were collected,combining with the distribution of coal seam gas,the influence factors of gas content were analyzed one by one by using multi-factor comprehensive analysis method,influence degree of each factor on the gas content of coal mine was discussed.The results show that the content of gas in the coal seam is affected by the geological structure,sedimentary environment,the buried depth of the coal seam,the quality of coal and surrounding rock in certain degree.How the coal seam gas content affects the coal mine production should be considered comprehensively.The results can provide a basis for the accuracy of gas distribution determination,according to this result,measures can be taken to strengthen the prevention and control of gas hazard and avoid the occurrence of gas safety accidents.