摘要
为更好地掌握大湾矿11#煤层瓦斯赋存特征,提高防突能力,运用地层学理论将该矿地层划分为2个层序;结合瓦斯地质学理论,运用定性与定量相结合的方法,探讨各因素对瓦斯赋存的影响,得出影响11#煤层瓦斯赋存特征的3个关键因素:地质构造、覆岩、煤层埋深。根据现场实测数据,结合数理统计方法建立了瓦斯压力预测模型,其预测值与实测值比较,误差较小。利用该模型对11#煤层瓦斯压力空间分布进行预测,可为煤与瓦斯突出防治提供理论指导。
In order to better grasp the characteristics of gas occurrence in No. 11 coal seam in Dawan Coal Mine and improve the outburst prevention ability, the strata of the mine were divided into two sequences by using stratigraphy theory; based on the theory of coal-bed gas geology and by using the qualitative and quantitative methods, discussion was made on the influence of various factors upon the occurrence of gas, and three key factors affecting the occurrence characteristics of gas in No. 11 coal seam were obtained, i.e. the geological structure, the overburden rock and the buried depth of coal seam. A prediction model of gas pressure was established according to the field test data and by using the method of mathematical statistics, and the error of the predicted values was smaller as compared with that of the measured ones. The prediction on the space distribution of gas pressure in No. 11 coal seam was carried out by using this model, which can provide a theoretical guidance for the effective prevention and control of coal and gas outburst.
出处
《矿业安全与环保》
北大核心
2014年第4期93-96,共4页
Mining Safety & Environmental Protection
关键词
瓦斯赋存
层序划分
关键因素
瓦斯压力
预测模型
gas occurrence
sequence division
key factor
gas pressure
prediction model
