新发矿瓦斯地质规律与瓦斯预测

Gas-geology law and gas prediction of Xinfa coal mine

基于矿井地质因素与瓦斯赋存状况之间的关系,探讨了新发矿瓦斯地质规律,综合分析了本煤层瓦斯在断层等地质构造复杂区域的赋存特征,以及煤层围岩、煤层底板标高、煤层埋深对瓦斯赋存的影响。结果表明,地质构造是控制新发矿36A煤层瓦斯分布的主要因素,其次是煤层底板标高和煤层埋深。利用生产实测的瓦斯含量和瓦斯涌出量数据,建立了煤层底板标高与瓦斯含量、瓦斯涌出量的数学模型,并进行了回归分析,对矿井深部水平瓦斯含量和瓦斯涌出量进行了预测,为瓦斯防治工作提供了依据。

Based on the relationship between the mine geological factors and gas occurrence status,the paper discussed the gas geological law of Xinfa coal mine and comprehensively analyzed the coal seam gas occurrence characteristics in fault and other complex areas of geological structure,as well as the influence of the coal seam surrounding rock,coal seam floor elevation and coal seam buried depth on gas occurrence.The results showed that the geological structure was the main factor to control gas distribution of 36A coal seam,and secondly was coal seam floor elevation and buried depth.It used the gas content and gas emission data of production measured,then established mathematical model of the coal seam floor elevation and gas content as well as gas emission quantity.Meanwhile it took the regression analysis,and predictded gas content and gas emission quantity in coal mine＇s deep level,which provided a basis for the gas prevention and control.