三河口煤矿瓦斯地质规律研究

Study of the Law of Gas-Geology in Main Coal Seam of Sanhekou Coalmine

以瓦斯地质理论为基础,结合三河口煤矿地质特征以及瓦斯基础测试参数,对该矿井3煤层瓦斯地质规律进行了研究,并对瓦斯涌出量数据进行回归分析,预测了三河口煤矿3煤层未采区瓦斯涌出量,为3煤层未采区瓦斯抽采和安全开采提供了依据。其中,井田西区瓦斯涌出量与煤层埋深有较好的正相关关系,总体上随煤层埋深的增加,瓦斯涌出量增大;在靠近岩浆岩的地区,岩浆岩成为主控因素,瓦斯涌出量有所升高。而东区瓦斯涌出量则与距岩浆岩的距离成负相关关系。

Based on the theory of gas-geology and combined with the geology characteristics and basic gas parameters measured in Sanhekou mine, this paper studied the law of gas-geology in coal seam 3 of Sanhekou mine, predicted the gas emission content of unmined area at coal seam 3 in Sanhekou mine through the regression analysis of the gas emission content data in the past,and provided the basis for gas drainage and safety in coalmine mining of unmined area atcoal seam 3. According to the study, the gas emission content, which has the positive correlation with coal seam burial depth in west area of coalfield, increases with coal seam burial depth on the whole increasing;in the area near magmatite,the magmatite becomes the main control factor and the gas emission content increases; and the gas emission content has the negative correlation with the distance from the magmatite in east area.